How can you show that these two circles are similar?

Answer: 4

Step-by-step explanation:

Using the Pythagorean theorem,

[tex]3^2 + x^2 = 5^2\\\\9+x^2=25\\\\x^2=16\\\\x=4[/tex]

Answer:30,000 meters

Step-by-step explanation:

Answer:

30km

Step-by-step explanation:

to find 10% you divide 100km by 10= 10km

to find the full 30% simply divide 10% by 3 which will give you 30km.

Answer:

D

Step-by-step explanation:

it is a regular pentagon.

so, all side lengths are equal, and also all cross connections between corners are equal.

that makes TR parallel to PQ.

and that makes SPQ an isoceles triangle (both legs are equally long). and the smaller triangle S to x to the angle to the right of x is similar to SPQ, which means they have the same angles.

so, the triangle interior angle at P = the triangle interior angle Q = y.

and they must be the same as the bottom 2 interior angles of the small triangle.

x and the angle right to x are equal too, as they are the triangle exterior (supplementary) angles to the bottom 2 interior angles of the small triangle.

we know that the sum of all angles of the internal trapezoid (PQ to x and its right neighbor) is 360.

and based on the EqualLogic found above these angles are

2×x + 2×y = 360°

x + y = 180°

Answer: 28.

Step-by-step explanation:

If 40% of the teachers in attendance at the school staff meeting were first-year teachers, that means 28 of the teachers in the meeting were first-year teachers.

Answer:

28

Step-by-step explanation:

We first would need to figure out what %10 of 70 is.

%10 of 70 is equal to 7.

Now that we have this answer, we can multiply 7 by 4 to get the number of teachers.

7 × 4 = 28

28 first year teachers were in the meeting.

Answer:

if you want the volume of the outer cube with the other cube in it, it would be 48. if you want it without the cube its 120. the inside cube is 72.

Step-by-step explanation:

Answer:

48 mm³

Step-by-step explanation:

Outer prism:

5 mm by 4 mm by 6 mm

V = LWH = 5 × 4 × 6 mm³ = 120 mm³

Inner prism:

4 mm by 3 mm by 6 mm

V = LWH = 4 × 3 × 6 mm³ = 72 mm³

Difference:

120 mm³ - 72 mm³ = 48 mm³

Probability of drawing bad potatoes = 0.1

The probability of drawing a bag with bad potatoes is less than 1.

The probability of drawing a bag with good potatoes is greater than 0

The probability of drawing a bag with bad potatoes as a decimal .

The probability is 20% which means 20 by hundred , which means there is a chance of being its ok.

probability of bad potatoes = 2/20

=1/10

=0.1

To find the probability of the outcomes = Number of favourable outcome / Number of total outcome.

Probability of event 1 and 2

probability of event 1 =Number of favourable outcome / Number of total outcome.

probability of event 2 = 1 -( probability of event 1)

probability of good potatoes = 1- ( probability of bad potatoes)

Probability of the given event( probability of the bad potatoes = 1-(0.1)

Thus,

Probability of the bad potatoes in the 2 of the bags are=0.9

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The elevator's rate of travel in meters per second is 2m/s and 1/2 s/m is in seconds per meter.

A division is a process of splitting a specific amount into equal parts.

Given,

An elevator in the Seattle Space Needle can rise 100 meters in 50 seconds,

We need to find the elevator's rate of travel in meters per second and in seconds per meter

To find in meter per second we just need to divide 100 by 50 seconds

100/50=2 m/s

To find in seconds per meter we just need to divide 50 by 100

50/100=1/2s/m

Hence, the elevator's rate of travel in meters per second is 2m/s and 1/2 s/m is in seconds per meter.

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The number of songs and games Jenna bought is 9.5 and 2.5 respectively.

let

x + y = 12

1.99x + 3.99y = 18.88

From (1)

x = 12 - y

Substitute into (2)

1.99x + 3.99y = 18.88

1.99(12 - y) + 3.99y = 18.88

23.88 - 1.99y + 3.99y = 18.88

- 1.99y + 3.99y = 18.88 - 23.88

2y = -5

y = -5/2

y = 2.5

Substitute into (1)

x + y = 12

x + 2.5 = 12

x = 12 - 2.5

x = 9.5

Therefore, Jenna bought 9.5 songs and 2.5 games.

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Answer:

G = -32

Step-by-step explanation:

Answer:

Q-(1,1)       L-(1,-2)       G-(4,-4)

Step-by-step explanation:

becuase

The decimal 0.000000836 in scientific notation is 8. 36 × 10^-7

Scientific notation can be defined as a way of expressing numbers too small or too large to be conveniently written in decimal form.

It is also referred to as standard index form,  standard form and scientific form.

It is commonly used for complex calculations with lengthy numbers.

It is also described as a method of expressing numbers in the terms of a decimal number that is between 1 and 10, and not 10 itself multiplied by a power of 10.

Given the decimal;

0.000000836

In scientific notation, it is written as;

8. 36 × 10^-7

The power is negative because the zeros are counted towards the right side.

Hence, the value is 8. 36 × 10^-7

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Thus, the scale factor by which he increased his screen size is 3:2

The ratio of the scale of an original thing to a new object that is a representation of it but of a different size is known as a scale factor (bigger or smaller). For instance, we can increase the size of a rectangle with sides of 2 cm and 4 cm by multiplying each side by, let's say, 2.

Given, the pixel of Mike's old calculator = 96 pixel

His new calculator has pixels = 144 pixel

Scale by which it increased = New pixels/Old pixel

= 144p/96p

= 3:2

Thus, the scale factor by which he increased his screen size is 3:2

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The subject of a random event is covered in the mathematical field of probability.

Statistics is a field of mathematics that deals with gathering, analyzing, interpreting, and presenting vast amounts of numerical data.

Given,

Probability;-

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics. The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

Statistics;-

Statistics are numerical representations of sample characteristics. One population parameter is the average income in the United States. On the other hand, a sample statistic is the average income for a sample taken from the United States. Although both figures correspond to the mean income, only one is a statistic.

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Answer:

After the first translation, the coordinates of the vertices of the triangle will be X (3,-13), Y (0,-8), Z (-7, 1). After the second translation, the coordinates of the vertices will be X (5,-7), Y (2,-2), Z (-5, 7).

The final translation rule that maps the pre-image to the final image is a translation of 2 units right and 6 units up. This can be written as a translation rule of the form (x, y) -> (x + 2, y + 6).

Step-by-step explanation:

After the first translation the coordinates are:

After the second translation the coordinates are:

The final translation rule is:

or

Answer:  -2 < x < 1

Step-by-step explanation:

The complete model will be;

⇒ 0.5 × 0.1 = 0.05

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

A 10 by 10 grid is shown.

And, 5 columns and 1 row are shaded.

Now,

Since, 5 columns and 1 row are shaded.

Hence, The complete model will be;

⇒ 0.5 × 0.1 = 0.05

Thus, The complete model will be;

⇒ 0.5 × 0.1 = 0.05

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The rate of increase in stock price is $ 0.10 per hour.  

To calculate the rate of increase we need to know the increased amount per given time period

In this problem, we will calculate the stock price per given hour from that will calculate the rate of increase in a given situation.

Here we have

The price (in dollars) of a stock tracked from noon to three on a given day is shown by the function f(t) = 0.1(t - 2)³ + 6 where t is in hours.  

Take t = 1

=> f(1) = 0.1(1 - 2)³ + 6

= 0.1(-1)³ + 6

= 0.1(-1) + 6

= - 0.1 + 6

= 5.9

Take t = 2

=> f(2) = 0.1(2 - 2)³ + 6

= 0.1(0)³ + 6

=  6

Take t = 3

=> f(3) = 0.1(3 - 2)³ + 6

= 0.1(1)³ + 6

= 0.1 + 6

= 6.1

The rate rate of increase = f(3) - f(2) = 6.1 - 6 = 0.1 ≅ $ 0.10

Therefore,

The rate of increase in stock price is $ 0.10 per hour.

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If there is another element of the same set between any two members of a set, we can say that the set is dense.

We'll show that the first choice—3.14 and pi—is the right one.

To prove that the set of irrational numbers contains a lot of real numbers, we must first discover an irrational number that lies between two specified real numbers.

In order to extend this to the real set, which is the union of irrational numbers and rational numbers, we should be able to find an irrational number between a rational number and an irrational number (or between an irrational number and a rational number). This is because we know that irrational numbers are dense (between two irrational numbers we can find another irrational number).

The first option, which has one of each, will then be the right choice.

Pi is irrational, while 3.14 is rational.

Finding an irrational number between these two indicates that the real set contains many irrational numbers.

(Note that the third option likewise has an irrational and a rational number, but the first one, [tex]e^{2}[/tex], is larger than the second one[tex]\sqrt{54}[/tex], thus it is written wrongly; for this reason, we did not choose it.)

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Answer:

Step-by-step explanation:

1000-520=480

480/6=80

x+6+520=1000 (-6)

x+514=1000

x=486

If each unit on the grid represent 25 feet, then the perimeter of the factory is 1000 feet

Each unit on the grid represent 25 feet

The length of the side w1 = 3 × 25

= 75 feet

The length of the side N1 = 13 × 25

= 325 feet

The length of the side E1 = 7 × 25

= 175 feet

The length of the side S1 = 5 × 25

= 125 feet

The length of the side W1 = 4 × 25

= 100 feet

The length of the side S2 = 8 × 25

= 200 feet

The perimeter of the factory = 75 + 325 + 175 + 125 + 100 + 200

Add the terms together

= 1000 feet

Therefore, the perimeter of the factory is 1000 feet

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Answer: Look at step-by-step explanation

Step-by-step explanation:

1) When a polynomial f(x) has a factor x - y, then f(y) = 0, hence

[tex]2^{3}[/tex] - 3 × [tex]2^{2}[/tex] + 2a + b = 0

8 - 12 + 2a + b = 0

2a + b = 4

2) When a polynomial f(x) is divided by x - y, then f(y) = the remainder, hence

(A) When divided by x - 1

[tex]1^{3}[/tex] - 3 × [tex]1^{2}[/tex] + a + b = 1 - 3 + a + b = a + b - 2

(B) When divided by x - 3

[tex]3^{3}[/tex] - 3 × [tex]3^{2}[/tex] + 3a + b = 27 - 27 + 3a + b = 3a + b

82.5 million was the profit the year before the profit decreased 20% to 66 million from one year to the next

What does profit means ?

Profit is the term used to describe the financial gain experienced when the revenue from a commercial activity exceeds the costs, costs, and taxes associated with maintaining that activity.

Any profits generated are returned to the company's owners, who can decide whether to keep the money for themselves, pay dividends to shareholders, or reinvest it in the company.

Entire revenue less total costs equals profit.

Companies report gross profit, operational profit, and net profit for accounting purposes (the "bottom line").

Investors are drawn to profitable businesses because these businesses either distribute their earnings as dividends to shareholders or invest them back into the business, which raises stock value.

According to the question Company lost 20% from its profit and it reached to 66 million that means

let X be the total profit of the year

X - loss percent = 66 millions

X - X (20/100) = 66 million

X-0.2X = 66 million

0.8X = 66 million

X= 66/0.8 million

X = 82.5 million

So, 82.5 million was the profit the year before

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The answers are 1) Distributive property 2) Combining like terms 3)    Subtraction property of equality 4)  Subtraction property of equality 5)  Subtraction property of equality

An identity is an equality that holds true regardless of the values chosen for its variables. They are used in simplifying or rearranging algebra expressions.

Given; 4x-2(3+2x) = 2x+11

1) 4x-6-4x = 2x+11 = Distributive property

2) 4x-4x-6 = 2x-11 = Combining like terms

3) -6 = 2x-11 = Subtraction property of equality

4) -17 = 2x = Subtraction property of equality

5) -8.5 = 2 =  Subtraction property of equality

Hence, the answers are 1) Distributive property 2) Combining like terms 3)    Subtraction property of equality 4)  Subtraction property of equality 5)  Subtraction property of equality

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Answer:

8 is the answer

A frequency distribution table is a tool for structuring the provided data in a way that makes sense and facilitates comprehension.

The partial results :

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Considering the climate of the North Pole, Alaska, we have seen that the change in the Temperature is 13°F and 14 °F respectively on the 1st and last day of the month respectively.

From records, we know that Alaska usually has an average low temperature of 9°F and an average high temperature of 22°F in January.

However In February,  Alaska's temperature usually ranges from an average low temperature of 12°F to an average high temperature of 26°F.

Thus, we can find the change in Temperature:

On 1st day of January , the Change in temperature is;

ΔT = Highest Temperature - lowest temperature

ΔT = 22°F - 9°F

ΔT = 13°F

On the 1st day of February, and then the last day of January, the change in temperature is;

ΔT= Highest Temperature -  lowest temperature

ΔT = 26°F -  12°F

ΔT = 14 °F.

The hardest part will be to take take care of the animals since most of the animals only require a warm, secure, as well as protected area to reside in addition to sufficient food, drink, and exercise.

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The given expression can be simplified using the arithmetic operation as 0.00080987.

The arithmetic operations are the fundamentals of all mathematical operations. The example of these operators are addition, subtraction, multiplication and division.

The given problem can be written in terms of expression as,

42 ÷ 51860

It can be solved as follows,

The number of digits in 51860 is 5 and in 42 is 2.

In order to divide the two numbers, the dividend should be greater than the divisor.

Therefore, multiply both 42 and 51860 by 10000 to obtain,

(42 × 10000) ÷ (51860 × 10000)

⇒ 420000 ÷ (51860 × 10000)

Now, first divide  420000 by 51860 to get,

420000 ÷ 51860 = 8.0987

Then, divide 8.0987 by 10000 to get,

8.0987 ÷ 10000 = 0.00080987

Hence, the required result of the given expression is 0.00080987.

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Option D, The equation that satisfy the situation is  y - 12 = 1.50(x-6).

The study of geometry using coordinate points is known as coordinate geometry (also known as analytical geometry). Finding the distance between two points, breaking lines into m:n segments, locating a line's midpoint, computing a triangle's area in the Cartesian plane, and other operations are all feasible using coordinate geometry.

A straight line is represented using its slope and a point on the line using point slope form. This indicates that the point slope form is used to get the equation of a line whose slope is "m" and which passes through the points (x 1, y 1). The equation of a straight line can be expressed in several ways. Point slope shape is one of them. Y - Y 1 = m(x - X 1) is the equation for the point slope form, where (x1, y1) is a randomly chosen point on the line and m is the slope of the line.

The slope of the line is 1.5

The Point through which the equation will satisfy is (6,12)

Therefore the equation of the line in Point-Slope form is

y - y1 = m ( x- x1)

⇒ y - 12 = 1.50 ( x  - 6)

Option D, The equation that satisfy the situation is  y - 12 = 1.50(x-6).

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