A metalworker cuts out a large semicircle with a diameter of 28 centimeters.Then the metalworker is a smaller sine ait of the larger one and rives it. The der of the ticular pince that is removed a 14 centimeters. Find the distance wound the shape after the smaller circle is removed. Use 22/7​

Answers

Answer 1

The distance around the shape after the smaller semicircle is removed is 29 cm.The correct answer is option D.

To find the distance around the shape after the smaller semicircle is removed, we need to calculate the circumference of the larger semicircle and subtract the circumference of the smaller semicircle.

The circumference of a semicircle is given by the formula:

Circumference = π * radius + diameter/2

For the larger semicircle:

Radius = diameter/2 = 28/2 = 14 cm

Circumference of the larger semicircle = π * 14 + 28/2 = 22/7 * 14 + 14 = 44 + 14 = 58 cm

For the smaller semicircle:

Radius = diameter/2 = 14/2 = 7 cm

Circumference of the smaller semicircle = π * 7 + 14/2 = 22/7 * 7 + 7 = 22 + 7 = 29 cm

Therefore, the distance around the shape after the smaller semicircle is removed is:

58 cm - 29 cm = 29 cm

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The Probable question may be:
A metalworker cuts out a large semicircle with a diameter of 28 centimeters. Then the metalworker cuts a smaller semicircle out of the larger one and removes it. The diameter of the semicircular piece that is removed is 14 centimeters. What will be the distance around the shape after the smaller semicircle is removed? Use 22/7​ as an approximation for π.

A. 80cm

B. 82cm

C. 85cm

D. 86cm


Related Questions

A particular type of vaccine comes in a Brand-1 and a Brand-2. Sixty-five percent
of all patients at a certain vaccination centre want the Brand-2.
i) Among ten randomly selected patients who want this type of vaccine, what
is the probability that at least six want the Brand-2?
ii) Among ten randomly selected patients, what is the probability that the
number who want the Brand-2 vaccine is within 1 standard deviation of
the mean value?
iii) The store currently has seven vaccines of each brand. What is the probability that all of the next ten patients who want this vaccine can get the brand
of vaccine they want from current stock?

Answers

i) Probability of at least six patients wanting Brand-2: P(X ≥ 6)

ii) Probability of number of patients within 1 standard deviation of mean: P(μ - σ ≤ X ≤ μ + σ)

iii) Probability that all ten patients get their desired brand from current stock: (7/14) * (6/13) * ... * (1/5)

i) The probability of at least six patients wanting Brand-2 out of ten randomly selected patients can be calculated using the binomial distribution. We need to sum the probabilities of six, seven, eight, nine, and ten patients wanting Brand-2.

The probability can be calculated as P(X ≥ 6) = P(X = 6) + P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10), where X follows a binomial distribution with n = 10 and p = 0.65. The answer is the sum of these individual probabilities.

ii) To calculate the probability of the number of patients who want the Brand-2 vaccine being within 1 standard deviation of the mean value, we need to find the range of values that fall within one standard deviation of the mean.

We can use the normal approximation to the binomial distribution since n = 10 is reasonably large. We calculate the mean (μ) and standard deviation (σ) using μ = n * p and σ = √(n * p * (1 - p)), where p = 0.65. Then we calculate the probability of the number of patients falling within the range μ - σ to μ + σ.

iii) Since there are seven vaccines of each brand in stock, the probability that all ten patients who want the vaccine can get the brand they want from the current stock is equal to the probability of the first patient getting their desired brand (7/14) multiplied by the probability of the second patient getting their desired brand (6/13), and so on until the tenth patient (1/5). The final probability is the product of these individual probabilities.

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Han make sparkling juice by mixing 1. 5 liter of juice and 500 milliliter of sparkling water

Answers

Han will have 2 liters (or 2000 milliliters) of sparkling juice after combining 1.5 liters of juice and 500 milliliters of sparkling water.

To make sparkling juice, Han mixes 1.5 liters of juice and 500 milliliters of sparkling water.

To add the quantities together, we need to convert the units to the same measurement. We can convert the liters to milliliters since 1 liter is equal to 1000 milliliters.

1.5 liters is equal to 1.5 x 1000 = 1500 milliliters.

Now we have 1500 milliliters of juice and 500 milliliters of sparkling water.

To find the total quantity of the sparkling juice, we add the volumes of juice and sparkling water together:

1500 milliliters + 500 milliliters = 2000 milliliters

Therefore, Han will have a total of 2000 milliliters (or 2 liters) of sparkling juice by mixing 1.5 liters of juice and 500 milliliters of sparkling water.

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I WILL GIVE BRAINLIEST

Answers

Step-by-step explanation:

In a randomized block design blocked by gender, treatments should be assigned randomly within each gender block. The correct assignment maintains a distribution of one treatment for each gender. Looking at the given options, only one meets this criterion:

OA: (1f, 2f), B: (1m, 2m). C: (3f, 3m). D: (4f, 4m)

Each treatment group A, B, C, and D contains one male and one female, making the distribution of treatments blocked by gender.

Rearrange the equation so u is the independent variable

-12u+13=8w-3

w=_______

Answers

the answer is

w = -3/2 u + 2

Question 4(Multiple Choice Worth 5 points)
(01.02 MC)
A manufacturing firm employs workers to monitor and maintain specialized machines making small metal parts. Which economic questions does this statement
answer?
O How much to produce? How much to charge?
How to produce? How much to produce?
Owhat to produce? For whom to produce?
Owhat to produce? How to produce?

Answers

The correct answer is: O How to produce? How much to produce?

The statement "A manufacturing firm employs workers to monitor and maintain specialized machines making small metal parts" answers the economic questions of "How to produce?" and "How much to produce?"

How to produce: The statement indicates that the manufacturing firm has chosen to employ workers to monitor and maintain specialized machines. This suggests that they have made a decision regarding the production process and how they will go about manufacturing the small metal parts.

How much to produce: The fact that the manufacturing firm has employed workers to monitor and maintain the machines implies that they have determined a level of production that is deemed appropriate or necessary. The number of workers and the capacity of the machines can influence the quantity of small metal parts produced.

Therefore, the correct answer is: O How to produce? How much to produce?

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APQR-ASTU. Solve for x. Enter the number only.

Answers

The length of the unknown side x using the concept of similar triangles is: x = 4

How to find the side lengths of similar triangles?

Similar triangles are referred to as triangles that have the same shape but different sizes. All equilateral triangles and squares of any side length are examples of similar objects. In other words, if two triangles are similar, their corresponding angles are the same and their corresponding side proportions are the same.

Now, we are told that triangle PQR is similar to Triangle STU and as such their corresponding sides are similar and therefore to find the missing side x, we have:

12/x = 15/5

x = (12 * 5)/15

x = 60/15

x = 4

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What is the solution to the equation below In X=3.1

Answers

Answer:

the solution would be X=3 as 3.1 represents 3×1.

Please answer ASAP I will brainlist

Answers

Answer:

f(0) = 1

f(1) = 21.1

Step-by-step explanation:

Do as the problem says:

[tex]f(0)=4^{2.2(0)}=4^0=1\\f(1)=4^{2.2(1)}=4^{2.2}\approx21.1[/tex]

what comes next in the sequence
7,10,19,34

Answers

Based on the pattern we identified, the next term in the sequence would be 55.

The sequence should be 7, 10, 19, 34, 55

To identify the pattern and determine what comes next in the given sequence (7, 10, 19, 34), we need to examine the relationship between the terms and look for a consistent pattern.

If we calculate the differences between consecutive terms, we get:

10 - 7 = 3

19 - 10 = 9

34 - 19 = 15

By examining the differences, we notice that they are increasing by 6 each time.

This suggests that the sequence might be formed by adding an increasing number to each term.

Let's calculate the next difference:

15 + 6 = 21

Now, let's add this difference to the last term of the sequence:

34 + 21 = 55

Therefore, based on the pattern we identified, the next term in the sequence would be 55.

To summarize:

7, 10, 19, 34, 55

It's important to note that without further context or information, this pattern is just one of the possibilities and may not be the only correct answer.

Additional terms or a different pattern may emerge if more information is provided.

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PLSPLSS PLSSMSL HELP ME

Answers

Answer:

1. x = 18

2. x = 31

Step-by-step explanation:

1. Angles in a quadrilateral sum to 360°.

360 -(60 +130 +70) = 360 -260 = 100

So, x +82 = 100. x = 100 -82 = 18

2. Angles in a triangle sum to 180°. 180 -(29 +75) = 180 -104 = 76.

So, -17 +3x = 76. 3x = 93. x = 93/3 = 31

Michael has $15 and wants to buy a combination of cupcakes and fudge to feed at least three siblings. A cupcake costs $2, and a piece of fudge costs $3
This system of inequalities models the scenario:
2x + 3y <15
x+y≥ 3
Part A: Describe the graph of the system of inequalities, including shading and the types of lines graphed. Provide a description of the solution set. (4 points)
Part B: Is the point (5, 1) included in the solution area for the system? Justify your answer mathematically. (3 points)
Part C: Choose a different point in the solution set and interpret what it means in terms of the real-world context. (3 points).
***PLEASE MAKE IT EASY FOR ME SO ITS EASY TO TYPE*** 15 POINTS

Answers

Step-by-step explanation:

Part A: The graph of the system of inequalities consists of two lines and a shaded region.

The line 2x + 3y = 15 is a solid line (because of the "less than" symbol in the inequality) and is graphed using a straight line connecting two points. For example, when x = 0, y = 5, and when x = 7.5, y = 0.

The line x + y = 3 is a solid line (because of the "greater than or equal to" symbol in the inequality) and is graphed using a straight line connecting two points. For example, when x = 0, y = 3, and when x = 3, y = 0.

The shaded region represents the solution set. It is the area below the line 2x + 3y = 15 and above or on the line x + y = 3. This shaded region satisfies both inequalities simultaneously.

Part B: To determine if the point (5, 1) is included in the solution area, we substitute x = 5 and y = 1 into both inequalities:

2x + 3y < 15:

2(5) + 3(1) < 15

10 + 3 < 15

13 < 15

Since 13 is less than 15, the point (5, 1) satisfies the first inequality.

x + y ≥ 3:

5 + 1 ≥ 3

6 ≥ 3

Since 6 is greater than or equal to 3, the point (5, 1) satisfies the second inequality.

Since the point (5, 1) satisfies both inequalities, it is included in the solution area for the system.

Part C: Let's choose the point (2, 2) as another example from the solution set.

Interpretation in real-world context:

When we have x = 2 and y = 2, it means Michael decides to buy 2 cupcakes and 2 pieces of fudge. This combination of sweets satisfies the conditions set in the inequalities, ensuring that he can feed at least three siblings.

The point (2, 2) represents a valid solution in which Michael spends a total of $10 (2 cupcakes * $2/cupcake + 2 fudges * $3/fudge = $4 + $6 = $10). With this choice, he can afford to buy enough treats to feed his three siblings while staying within his budget of $15.

Part A: The graph consists of two lines. The first line is dotted, sloping downward, and does not include any points on it. The second line is solid, sloping upward, and includes points on it. To shade the solution set, we need to shade the region that satisfies both lines.

Part B: Yes, the point (5, 1) is included in the solution area for the system.

Part C: Let's choose the point (3, 2) in the solution set. This means Michael buys 3 cupcakes and 2 pieces of fudge. It allows him to feed at least three siblings within his budget of $15.

Mrs Johnson's latest test had an odd number of total marks. I got 84%. How many marks did I get?

Answers

Answer:168

Step-by-step explanation:Let's denote the total number of marks as "M."

Marks obtained = (84/100) * M

For example, if the total marks were 200, then:

Marks obtained = (84/100) * 200 = 168

Answer:

21

Step-by-step explanation:

If you got 84% then divide it by 100%. 100%/84%=21/25 check.

[tex] \frac{21}{25 } \times \frac{100}{1} = 84[/tex]

Find the measurement of each angle in a triangle. You need to provide me 3 different measurement of angles. please help !!

Answers

Answer:

x=30 degrees, 2x=60 degrees, 3x=90 degrees

Step-by-step explanation:

in a triangle the sum of angles is 180 so

x+2x+3x=180

6x=180

x=180/6

x=30

so the angle x is 30 degrees, the angle that is 2x is 60 degrees and the angle the angle 3x is 90

Millman’s golfing group is terrific for a group of amateurs. Are they ready to turn pro? Here’s the data. (Hint: Remember that the lower the score [in golf], the better!)

Milkman’s Group: size 9, average score 82, standard deviation 2.6

The pros: size 500, average score 71, standard deviation 3.1

Answers

Based on the average scores and standard deviations, it appears that Millman's group still has room for improvement before they can reach the level of professional golfers.

To determine whether Millman's golfing group is ready to turn pro, we can compare their performance to that of professional golfers. Based on the provided data, Millman's group consists of 9 amateurs with an average score of 82 and a standard deviation of 2.6.

On the other hand, the professional golfers consist of 500 individuals with an average score of 71 and a standard deviation of 3.1.

To make a meaningful comparison, we can look at the average scores of the two groups. The average score is an indicator of the overall performance, with lower scores being better in golf.

In this case, the professional golfers have an average score of 71, while Millman's group has an average score of 82. This suggests that the professional golfers perform better, on average, than Millman's group.

However, it is also essential to consider the standard deviation, which measures the variability of scores within each group. A smaller standard deviation indicates less variation and greater consistency in performance.

The professional golfers have a standard deviation of 3.1, while Millman's group has a standard deviation of 2.6. This suggests that Millman's group has slightly less variation in scores compared to the professional golfers.

Overall, based on the average scores and standard deviations, it appears that Millman's group still has room for improvement before they can reach the level of professional golfers.

The professional golfers demonstrate better performance, on average, and a slightly higher variability in scores compared to Millman's group. Therefore, it would be advisable for Millman's group to continue refining their skills and striving to improve their scores before considering turning pro.

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Naomi wants to save $100,000, so she makes quarterly payments of $1,500 into an account that earns 4.4%/a compounded quarterly. (If you are using TVM Solver, please ensure you provide screenshots of your work or breakdown how you entered everything into the solver).
How long will it take her to reach her goal?
Would doubling her payment amount save her half the time needed to save? Support your statement.

Answers

Naomi will take approximately 93 quarters (around 23 years and 3 months) to save $100,000 by making quarterly payments of $1,500 with a 4.4% interest rate.

Doubling her payment amount would save her time, but the exact time saved would require recalculating with the new payment amount.

To calculate the time it will take for Naomi to reach her goal of $100,000, we can use the future value formula for a series of periodic payments:

FV = P * [(1 + r)^n - 1] / r

Where:

FV = Future value (goal amount) = $100,000

P = Payment amount per period = $1,500

r = Interest rate per period = 4.4% per year / 4 (quarterly compounding) = 1.1% per quarter

n = Number of periods (quarters) to reach the goal (what we need to find)

Plugging in the values, we have:

$100,000 = $1,500 * [(1 + 0.011)^n - 1] / 0.011

Simplifying the equation, we have:

[(1 + 0.011)^n - 1] = $100,000 * 0.011 / $1,500

[(1.011)^n - 1] = 0.073333...

Now, we can solve this equation for n using logarithms:

n = log(0.073333...) / log(1.011)

Using a financial calculator or an online calculator, we find that n ≈ 92.33 quarters.

Since Naomi is making quarterly payments, we round up to the next whole number, giving us a total of 93 quarters.

Therefore, it will take Naomi approximately 93 quarters (or around 23 years and 3 months) to reach her goal of $100,000.

Doubling her payment amount to $3,000 per quarter would indeed save her time in reaching her goal. The higher payment amount means she would accumulate the desired amount faster. However, to determine the exact time saved, we would need to recalculate using the same formula as above with P = $3,000. The time saved will depend on the specific calculation result.

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what is 34.6285 rounded to the nearest hundreds

Answers

Answer:

34.63

Step-by-step explanation:

The 2 in 34.6285 marks the hundredths place

We can round by seeing what number is to the right of it which is 8.

Since 8 is larger than 5, we round up by 1.

Thus, 34.63 is our answer

The answer is:

34.63

Work/explanation:

Rounding to the nearest hundredth means rounding to 2 decimal places (DP).

So we have 2 decimal places, and the 3rd one matters too because it will determine the value of the 2nd DP.

The third DP is 8. Since it's greater than 5, then the value of the 2nd DP will be rounded up. I will add 1 to it.

Remember that we round up when the digit that we're rounding to is followed by another digit that is greater than or equal to 5.

So we round :

[tex]\bf{34.6285 =\!=\!\!\! > 34.63}[/tex]

Therefore, 34.6286 rounded to the nearest hundredth is 34.63.

4x+y20
find the value of y when x =6

Answers

Answer:

y= -4

Step-by-step explanation:

To find the value of y when x = 6, we can substitute x = 6 into the equation and solve for y:

4(6) + y = 20

24 + y = 20

y = 20 - 24

y = -4

Therefore, when x = 6, y is equal to -4.

NO LINKS!! URGENT HELP PLEASE!!

26. What is the ratio of a/c?​

Answers

Answer:  tan(52)

Reason:

Tangent is the ratio of opposite over adjacent.

The side 'a' is opposite reference angle 52, while c is adjacent to this angle.

Using a calculator, tan(52) = 1.27994 approximately.

Answer:

Tan 52°

Step-by-step explanation:

Since the Tangent of angle is given by the ratio of opposite to the adjacent.

So, Here

Tan 52°= opposite/adjacent

Tan 52°=a/c

Therefore, the ratio of a/c is Tan 52°

which f(x) function is this?

Answers

Answer:

[tex]f(x) = - 3 {x}^{2} - 6x - 1[/tex]

I need help with 36 please I don’t understand

Answers

Answer:

36)

[tex]f(x) = \frac{1}{x + 3} - 1[/tex]

The equation of the function is y = 1/(x + 3) - 1

How to determine the equation of the transformation

From the question, we have the following parameters that can be used in our computation:

The reciprocal function shifted down one unit and left three units

The equation of the reciprocal function is represented as

y = 1/x

When shifted down one unit, we have

y = (1/x) - 1

When shifted left three units, we have

y = 1/(x + 3) - 1

Hence, the equation of the function is y = 1/(x + 3) - 1

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Suppose you have entered a 48-mile biathlon that consists of a run and a bicycle race. During your run, your average
velocity is 5 miles per hour, and during your bicycle race, your average velocity is 23 miles per hour. You finish the race
in 6 hours. What is the distance of the run? What is the distance of the bicycle race?
The distance of the run is miles.

Answers

The distance of the bicycle race is approximately 24.61 miles.

Let's assume the distance of the run is 'x' miles and the distance of the bicycle race is 'y' miles.

We know that average velocity is equal to the total distance divided by the total time taken.

We can use this information to form two equations based on the given average velocities and total time.

For the run:

Average velocity = Distance of the run / Time taken for the run

5 mph = x miles / T hours ---(Equation 1)

For the bicycle race:

Average velocity = Distance of the bicycle race / Time taken for the bicycle race

23 mph = y miles / (6 - T) hours ---(Equation 2)

Since the total time for the race is 6 hours, we can substitute (6 - T) for the time taken during the bicycle race.

Now, we can solve these equations simultaneously to find the values of 'x' and 'y'.

From Equation 1, we have:

5T = x

From Equation 2, we have:

23(6 - T) = y

Now, we substitute the value of 'x' in terms of 'T' from Equation 1 into Equation 2:

23(6 - T) = 5T

138 - 23T = 5T

138 = 28T

T = 138 / 28

T ≈ 4.93 hours

Substituting this value back into Equation 1, we can find 'x':

5(4.93) = x

x ≈ 24.65 miles

Therefore, the distance of the run is approximately 24.65 miles.

To find the distance of the bicycle race, we substitute the value of 'T' back into Equation 2:

23(6 - 4.93) = y

23(1.07) = y

y ≈ 24.61 miles

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Determine the surface area and volume

Answers

Answer:

Volume : 300

Surface Area : 280

Step-by-step explanation:

Volume : 6*5*10

Surface Area : 50+50+30+30+60+60

A total of 27 students are in your class. There are nine more males than females.

How many females are in your class?

Answers

9 females. 18 males.

Two roll of electric wire contain 80m 20cm and 86m 56cm of wire respectively. what is the total length of electric wire of both the roll? Express the Result in metres​

Answers

The total length of electric wire in both rolls is 166.76 meters.

To find the total length of electric wire in both rolls, we need to add the lengths of the two rolls together.

The first roll contains 80m 20cm of wire. We can convert this to meters by noting that 1 meter is equal to 100 centimeters. Therefore, the length of the first roll is:

80m 20cm = 80 meters + (20 centimeters / 100) meters

= 80 meters + 0.20 meters

= 80.20 meters

Similarly, the second roll contains 86m 56cm of wire. Converting this to meters:

86m 56cm = 86 meters + (56 centimeters / 100) meters

= 86 meters + 0.56 meters

= 86.56 meters

To find the total length, we add the lengths of both rolls:

Total length = 80.20 meters + 86.56 meters

= 166.76 meters

Therefore, the total length of electric wire in both rolls is 166.76 meters.

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which equation could use the find the length of the hypotenuse
0 6² + 11² - c²
0 6²+c² - 11²
Oc²-6²-11²
0 11²-6²-c²

Answers

Answer:

A. 6² + 11² = c²

Step-by-step explanation:

The correct equation to find the length of the hypotenuse in a right triangle is the Pythagorean theorem, which states that the square of the length of the hypotenuse is equal to the sum of the squares of the other two sides.

In this case, if we assume that the length of one side is 6 and the length of the other side is 11, the correct equation would be:

A. 6² + 11² = c²

This equation can be simplified as follows:

36 + 121 = c²

157 = c²

Therefore, the correct equation to find the length of the hypotenuse in this case is A. 6² + 11² = c².

which of the following will form the composite function G(F(x)) shown below G(F(x)) = 4√x

Answers

Please add further information so that we can help accordingly :)

When parallel lines are intersected by a transversal, which of the following angle pairs are supplementary?

Answers

Answer:

if two parallel lines are cut by a transversal,then, exterior angles on the same side of the transversal are supplementary!

Step-by-step explanation:

I don't really know how to explain it but I hope this helped!

Lola has 37 in Saint in her pocket. Then she finds these coins in the couch

Answers

Answer:

?

Step-by-step explanation:

?

This example using cluster sampling, how do we know whether these estimates are considered valid?

Answers

The estimates are not correct because we are to find the proportion and sample error of the given values. The proportion expresses the number of opposing votes to the total number of voters. Also, the sampling error follows the formula of [tex]SE = Z\sqrt{P(1 - P/n)}[/tex]

                                                                     

The right estimate to use

The exact formula used in the expression is quite different from the standard formula for calculating the standard error. We are supposed to find the root of the standard deviation but that is not the case as can be seen in the formula above.

So, the main issue with this formula is that the square root is not considered in the proportion formula used by the council, so it is not a valid estimate.

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A given city is at 35°S and 200°W. How far is it from this city to A. the North Pole and B. the Equator C. the south pole

Answers

The distance from the given city to the South Pole is 125 degrees of latitude.

To determine the distance from the given city to various locations, we need to consider the latitude and longitude coordinates.

Distance to the North Pole:

The North Pole is located at 90°N latitude. Since the given city is at 35°S latitude, we need to calculate the difference in latitude between the city and the North Pole.

Distance to the North Pole = 90° - 35° = 55°

The distance from the given city to the North Pole is 55 degrees of latitude.

Distance to the Equator:

The Equator is located at 0° latitude. To determine the distance from the city to the Equator, we need to calculate the absolute value of the latitude of the city.

Distance to the Equator = |35°| = 35°

The distance from the given city to the Equator is 35 degrees of latitude.

Distance to the South Pole:

The South Pole is located at 90°S latitude. Since the given city is at 35°S latitude, we need to calculate the difference in latitude between the city and the South Pole.

Distance to the South Pole = 35° - (-90°) = 35° + 90° = 125°

The distance from the given city to the South Pole is 125 degrees of latitude.

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Other Questions
Selected transactions for Marigold, an interior decorator corporation, in its first month of business, are as follows. 1. Issued stock to investors for $13,000 in cash. 2. Purchased used car for $10,600 cash for use in business. 3. Purchased supplies on account for $350. 4. Billed customers $3,850 for services performed. 5. Paid $110 cash for advertising at the start of the business. 6. Received $1,430 cash from customers billed in transaction (4). 7. Paid creditor $410 cash on account. 8. Paid dividends of $370 cash to stockholders. (a) For each transaction indicate the basic type of account debited and credited (asset, liability, stockholders' equity); the specific account debited and credited (Cash, Rent Expense, Service Revenue, etc); whether the specific account is increased or decreased; and the normal balance of the specific account. Account Debited 2. 3. 4. 5. 8. In this problem, you are considering a system designed to communicate human voice. To validate your complete system, you create the following test signal. g(t) = 2 +9.cos(21.500t) cos(211.2000t) +2.cos (21. 5000t) a) Provide a complete and well-labeled sketch the magnitude of the signal's spectrum, IGW). b) Your first component of your system (i.e., the signal conditioner) removes aspects of this test signal that are not relevant to the intended application. . Why would the first term ("2") be removed? Why would the third term ("2. cos (21. 5000t)") be removed? c) After signal conditioning, you are left with a signal m(t) that you will be using to test the remainder of your system. What is the full expression for m(t)? What is its power, Pm? d) You are now to sample the signal m(t) at 50% above the Nyquist rate. What is the sampling rate? Show your work. e) Discuss why, in practice, signals are over-sampled. Accompany your discussion with a figure(s) illustrating what is happening in the frequency domain. You're to implement a PCM system that linearly quantizes the samples and achieves an SNR after quantization of at least 24 dB. f) What is the minimum bit rate (Rp) needed to transmit the sampled quantized signal (mq[k])? Show your work. g) For this question only, what method would you use that could increase the SNR after quantization to 30 dB and use two less bits per sample for encoding? Provide the details quantifying the performance needed to implement this method. You now implement a particular (7,4) systematic linear Hamming block code where three of the resulting codes words are: [1 0 0 0 1 0 1], [0 0 1 0 0 1 1],[1 1 0 0 0 1 0] h) Provide the generator matrix for your (7,4) code. Clearly show your work and justify your answer. i) What is the new bit rate for the encoded data? Show your work. j) You receive the following 21 bits. What data do you decode? Clearly show your work and justify your answer. 0011110 011010 11000 101 k) Fully illustrate how to send the following three code words in a manner so that a burst of length b = 3 can be corrected. Introduce a burst of length b = 3 in the location of your own choosing and show that you can reconstruct the desired data. [1 0 0 0 1 0 1], [0 0 1 0 0 1 1],[1 1 0 0 0 1 0] The coded data from (k) is routed to a polar line-coder that uses a raised-cosine pulse with magnitude of Ap = 3.3V. The resulting signal is y(t). 1) What is the baseband bandwidth for y(t)? m) Determine the BER of this system if the channel noise is distributed -N(0,0.5). Derive your result assuming you have optimally placed your decision threshold and that "0"s and "1"s occur with equal likelihood. Simply writing the final "formula" is not sufficient. Your final answer should be numeric. n) Suppose instead, the same data were sent using the same pulse but with on-off signaling? How would your answer for (m) change? Again, derive your result. Simply writing the final "formula" is not sufficient. Your final answer should be numeric. o) Your optimal decision threshold in (m) and (n) was developed based on the assumption that "0"s and "1"s occur with equal likelihood in your bit stream. . What should be included in your communication system to ensure this assumption holds? James regards his new job as a challenge, whereas Stan regards the same new job as a potential threat. These different perceptions best illustrate O a. psychoneuroimmunology. O b. the general adaption syndrome. O c. immune deficiencies. O d. stress appraisal. Part A: In a DC motor, this is the name of the device or rotary switch that changes the direction of the armature's magnetic field each 180 degrees provide answer here (5) so the motor can continue its rotation. points) Part B: This voltage limits the inrush of current into the motor once the motor has provide answer here (5 points) come up to speed.. A 0.015 m/s flow rate of water is pumped at 15 kPa into a sand filter bed of particles having a diameter of 3 mm and sphericity of 0.8. The sand filter has a cross-sectional area of 0.25 m and a void fraction of 0.45. Assume the density and viscosity of water are 1000 kg/m3 and 1*10-3 Pa. s, respectively. a) Calculate the velocity of water through the bed? b) What is the most applicable fluid flow equation or correlation at these conditions? Verify? c) Calculate the length of the filter? 9. (5 pts) We learned about 2 types of symptoms of schizophrenia: the positive and the negative. Define each, and what the differences are between the two. Describe 2 specific examples of each. Antipsychotic medication is likely to more effectively treat which type: positive or negative? (circle one). Consider a simple model in which Earth's surface temperature is uniform and remains constant. In order to maintain thermal equilibrium, Earth must radiate energy to space just as quickly as it absorbs radiation Q1) Sunlight strikes the Earth at a rate of 1.74 x 1097 W, but only 70% of that energy is absorbed by the planet. (The rest is reflected back to space.) Given Earth's radius and assuming the planet has an emissivity of 1, what should be Earth's equilibrium surface temperature? A 245K(-28C) C.265 K(-8C) B. 255 K(-18C) D. 275 K (+2C) Q2) Instead, Earth's average surface temperature is 288 K (+15C) due to greenhouse gases in the atmosphere that warm the planet by trapping radiation. What is Earth's effective emissivity in this simple model? A. 0.6 C. 0.8 B.0.7 D. 0.9 Q3) If Earth could not radiate away the energy it absorbs from the Sun, its temperature would increase dramatically. Assume all of the energy absorbed by Earth were deposited in Earth's oceans which contain 1.4 x 1021 kg of water. How long would it take the average temperature of the oceans to rise by 2C? QUESTION (2) In your own words, discuss the process of undertaking an LCA on two types (solar and hydropower) of renewable energy system. You should mention the key steps involved (goal and scope definition, inventory analysis, allocation, etc.), as well as guidance on how an LCA report should be interpreted. What would be the expected main sources of carbon emissions for such systems and how could the environmental impact be reduced? A 2.00-nF capacitor with an initial charge of 5.81 C is discharged through a 1.50-km resistor. dQ (a) Calculate the current in the resistor 9.00 us after the resistor is connected across the terminals of the capacitor. (Let the positive direction of the current be define such that > 0.) dt mA (b) What charge remains on the capacitor after 8.00 s? C (c) What is the (magnitude of the) maximum current in the resistor? Complete the sentences. :) Reference groups Subculture Social class Groups and Social Networks Culture 1. 2. 3. 4. 5. is the set of basic values, perceptions, Design a Cylinder class with members of radius, height. Design the volume() function to calculate the volume of the cylinder and surface() function to calculate the surface area of the cylinder. ( PI = 3.14) Example Input and Output: Please input the radius: 3 Please input the height: 12 Volume = 339. 12 Surface area = 282.6 Assignment Q1: Determine the following for a 4-node quadrilateral isoparametric element whose coordinates are: (1,1), (3,2), (5,4),(2,5) a) The Jacobian matrix b) The stiffness matrix using full Gauss integration scheme c) The stiffness matrix using reduced Gauss integration scheme Assume plane-stress, unit thickness, E = 1 and v = 0.3. comment on the differences between a rectangular element and the given element. Where do those differences arise? Now repeat the problem with new coordinates: (1,1),(3,2), (50,4),(2,5). Inspect and comment on the stiffness matrix computed by full Gauss integration versus the exact integration (computed by MATLAB int command). Q2: Calculate the stiffness matrix of an 8-node quadrilaterial isoparametric element with full and reduced integration schemes. Use the same coordinates and material data, as given in Q1. Match the social psychology term with the definition. Attribution [Choose ] [Choose Internal Attribution The tendency to blame victims for their misfortune so that you feel less likely to be victimized in a similar wa Ascribe the causes of behavior to personal dispositions, traits, abilities, and feelings. Inferences that people draw about the causes of events, others' behavior, and their own behavior. The tendency to attribute your successes to help you received from others and the tendency to attribute you Observers are biased to explain the actions of others in terms of internal attributions, even when they have e Ascribe the causes of behavior to situation demands and environmental constraints External Attributions People are more likely to make internal attributions for other people's behavior and external attributions for th The tendency to attribute your successes to personal factors and your failures to situational factors. Fundamental Attribution Error [Choose] The Self-Serving Bias [Choose] Self-Effacing Bias [Choose ] Defensive Attributions Choose | Actor-Observer Effect [Choose) A rectangular beam has a width of 312mm and a total depth of 463mm. It is spanning a length of 11m and is simply supported on both ends and in the mid- span. It is reinforced with 4-25mm dia. At the tension side and 2-25mm dia. At the compression side with 70mm cover to centroids of reinforcements. F'c = 30 MPa Fy = 415 MPa = Use pmax = 0.023 Determine the total factored uniform load including the beam weight considering a moment capacity reduction of 0.9. Answer in KN/m two decimal places Explain the distinction between the terms ""sex"" and ""gender."" Quantum Manufacturing produces measuring instrument of 8 units using component J7 each month. The total manufacturing cost of one unit of J7 is $2,220 which include the following costs - Direct material: $200; Material handling (10% of direct material cost): $20;Direct labour: $800 and Manufacturing overhead (150% of direct labour);:$1,200.Material handling represents the direct variable costs charged by the Receiving Department. It has been agreed that they are applied to direct material and any purchased component at 10 per cent of the cost of the direct material or component delivered. This is a separate charge in addition to manufacturing overhead.Quantum's annual manufacturing overhead budget is one-third variable and two-thirds fixed. Hardware Supply, one of Quantum's reliable vendors,has offered to supply component J7 at a unit price of $1,800.Required:a) Calculate the incremental cost of purchasing one unit of component J7 from Hardware Supply and the incremental unit cost of manufacturing in-house. lllustrate by what amount would the unit cost of J7 change between the two choices?b) Assume if Quantum purchases J7 from Hardware Supply, the capacity that Quantum used to manufacture these components would be able to rent out for$12,000 per month. Assess by how much would Quantum's monthly cost for J7 increase or decrease if Quantum decides to purchase the 8 units from Hardware Supply?c) Assume that Quantum does not wish to commit to a rental agreement but could use its idle capacity to manufacture another product that would contribute $17,000 per month. Assess Quantum's opportunity cost from using the space to manufacture J7 if Quantum elects to manufacture J7 in order to maintain quality control? Tina spends all her income on shoes (S) and clothes (C). Her preferences can be represented by the utility function: (,) = 4ln() + 6ln() [15 marks]b. Find Tinas demand functions for shoes and clothes, (P, P, ) and (P, P, ), in terms of the price of shoes (P), the price of clothes (P), and Tinas income ().c. Find Tinas optimal bundle of shoes and clothes if her income is $10,000 and the price of shoe is $200 and the price of clothes is $300.a. Compute the marginal rate of substitution shoes for clothes (shoes is on the vertical axis). Is the MRS increasing or decreasing in S? How do we interpret this? Select the correct text in the passage.Click on the sentence that states the main idea.For infants, teething begins between two and twelve months. It usually lasts for about two years. Most children have all their teeth by their third birthday. Some babies manage to get through teething without much fuss. But for others, it's a very painful experience. The best way to deal with infant teething is to soothe the pain. Rub the infant's gums with your finger or use a cool spoon. Give the child a teething ring or a toy to chew on. Make sure it's cold. Cold objects feel good on painful gums. There are also some medicines that you can try, but consult your doctor first. 4-3. Briefly describe the main features of arch dams. 4-4. What is the double-curvature arch dam?