Answers
Answer:
1 unit
Step-by-step explanation:
- 1 1/2 - (- 2 1/2)
= 1 unit
Related Questions
use lagrange multipliers to prove that the rectangle with maximum area that has a given perimeter p is a square. let the sides of the rectangle be x and y and let f and g represent the area (a) and perimeter (p), respectively. find the following.
Answers
we get x=y =0 which gives 0 perimeter or x=y this implies rectangle must be a square
1. Method of Langrage Multipliers:
To find the extremum values of f(x,y) subject to constraint g(x,y) = k
find all values of x,y and λ, such that :
Δλ(f,x) = λΔg(x,y)
And g(x,y) = k
2. let the two side of the rectangle be x and y
therefore
f(x,y) = xy And g(x,y)= 2(x+y)=p
fₓ=λgₓ => y=2λ ----------------- 1
fy = λgy => x = 2λ----------------2
using equation and 1 and 2
λ=0, but this is not possible because tis implies x = y = 0, which gives 0 perimeter
or
x=y
Hence the rectangle must be a square
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The point B divides AC in the ratio 2:3.
Work out vector OC in terms of a and b.
Simplify your answer.
Answers
It is said that the ratio of point B to point AC is 2: 3.
This implies;
BC/AB = 3/2
BC = 3(b - a)/2
Thus;
AB + BC Equals AC
AC equals b-a plus 3(b-a)/2.
b-a - 3b/2 - 3a/2 = AC
AC = 5b/2 - 5a/2
AC = ⁵/₂(b - a) (b - a)
Using the same vector addition law, we can state that;
OC = AC – AO
OC = ⁵/₂(b - a) - (-a) (-a)
Given that giving OA is the inverse of -a, I used -a for AO.
Thus;
OC = 5b/2 - 5a/2 + a
OC = (⁵/₂)b - (³/₂)a
OC = ¹/₂(5b - 3a) (5b - 3a)
What is vector addition law?
Objects with both direction and magnitude are referred to be vectors. When two vectors have the same magnitude and direction, they are deemed to be one and the same. A line and an arrow are used to symbolize these geometrical objects. This arrow points in the direction of the vector, and the line's length indicates the vector's magnitude. These arrows, therefore, have a starting point and an ending point. Physical quantities like velocity, displacement, and acceleration are represented by vectors.
Notation A vector is frequently written in bold letters, such as an or b.
As seen on the right side, a vector may alternatively be expressed as the letters for its head and tail with an arrow above it.
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Help I neee help asap
Answers
Based on the information given, below statements are true
A. Feldman & Sons have a greater hourly rate.
B. The graph of the function for Strong Arm Movers has a greater y-intercept than the graph of the function for Feldman & Sons.
Feldman and Sons have a higher hourly rate or slope (35 compared to 25), but Strong Arm. Movers have a higher y-intercept (50 compared to 30). Feldman and Sons charge more than Strong Arms for both 3-hour and 2.5-hour transfers.
Explain about movers and packers ?Movers is an organization that helps people pack and move their belongings from one place to another. They take full responsibility for the items we have asked them to move and they also offer refunds if anything is broken or lost. That's what packers and movers mean. Movers and packers pack goods. Material load. Movement of goods and unloading of goods.
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Mr. Charles drinks 8 glasses of water each day. Each glass contains 240ml. How many
millimeters of water does he drink in a week?
Answers
Answer:
13440ml a week
Step-by-step explanation:
8x240=1920
1920x7=13440
13440is the amount of mls a week
Answer:
13440ml
Step-by-step explanation:
8 x 240 = 1920ml (per day)
(8 x 240) x 7 = 13440ml (7 days = 1 week)
a random sample of size is selected from a population with . a. what is the expected value of (to decimals)? b. what is the standard error of (to decimals)? c. show the sampling distribution of . (to decimals) (to decimals) d. what does the sampling distribution of show? - select your answer -
Answers
a. The expected value is 0.40
b. The standard error is 0.0024
Given that:
Sample size, n=100
Population proportion, p=0.40
a) The expected value of the sample proportion is defined as:
E(^p)=p
now,
E(^p)=0.40
b) The standard error of the sample proportion is defined as:
SE(^p) = √p(1-p)/n
SE(^p) = √0.40(1-0.40)/100
SE(^p) = 0.0024
c) The sampling distribution of the sample proportion is normally distributed with the expected value of the sample proportion of 0.40.
Therefore,
E(^p) = 0.40
d) The central limit theorem states that the sample statistic (sample proportion) tends to the population parameter (population proportion) as the sample size tends to infinity (OR n→∞).
^P~N(p, p(-p)/n) as n→∞
Hence we get the required answers.
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A food truck sells Mongolian ginger bowls for $14 per bowl. At a festival, 132 bowls are sold. About how much money does the food truck collect?
Answers
14 * 32 =
448 dollars
What is the slope of the line on the graph
Answers
Answer:
Slope = (6/1) or 6
Step-by-step explanation:
(0, -1), (1, 5)
(x₁, y₁) (x₂, y₂)
y₂ - y₁ 5 - (-1) 5 + 1 6
m = ------------- = ------------- = ---------- = -------
x₂ - x₁ 1 - 0 1 1
y - y₁ = m(x - x₁)
y - (-1) = 6(x - 0)
y + 1 = 6x - 0
-1 -1
-----------------------
y = 6x - 1
I hope this helps!
64 pens cost £5.76.
How much would 80 of these pens cost?
Answers
Answer: £7.20
Step-by-step explanation: £5.76/64 = £0.09 So one pen is £0.09. If you need 80, then £0.09 x 80 = £7.20
Solve the following problem using substitution or elimination method.
Two rental car companies are running specials this month. At Johnson’s Rentals, customers will pay $50 to rent a mid-sized car for the first day, plus $2 for each additional day (x). At Martinez Rent-a-Car, the price for a mid-sized car is $30 for the first day and $4 for each additional day (x). How many additional days (x) would it cost the same to rent from either company? What is that cost?
Let x represent the number of additional days you will rent a car and y represent the total cost of renting the car. Write a system to represent the situation, and solve to answer the question.
Answers
a) 10 additional days are required for both to cost the same.
b) The cost is 70$.
At Johan's Rental:
Rent= (50+2x)$
At Martinez Rent:
Rent= (30+4x)$
For both the cost same
By using Elimination method,
50+2x = 30+4x
50-30 = 4x-2x
20 = 2x
x = 10
10 additional days are required for both to cost the same.
Cost = 50+2x
= 50+2*10
=50+20
=70.
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Tea that sells for $2.00 a pound is mixed with a different tea that sells for
$5.00 a pound to produce 40 pounds of a custom blended tea that will
sell for $4.25 a pound. How many pounds of the less expensive tea
should be used in the mixture?
(1) 10
(2) 15
(3) 25
(4) 30
Pls show work pls show work pls show work pls show work
Answers
10 pounds of less expensive tea should be used in the mixture.
How to find the less expensive tea price?Inferior tea price = $2.00
Superior tea price = $5.00
Blended tea price = $4.25
Solution:
Price of 40 pounds of a custom blended tea = $4.25 * 40 = $170
Let x be the inferior tea quantity and
(40 - x) be the superior tea quantity.
2x + 5(40 - x) = 4.25 * 40
2x + 200 -5x = 170
-3x = -30
x = 10
Therefore, 10 pounds of less expensive tea should be used in the mixture.
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The number of bacteria in a culture triples every 3 hours. If there were 2 bacteria present at noon one day, how many were there at noon the next day assuming that all bacteria survived?
Answers
How many units the function y = |x| - 3 is translated from the parent function?3 units upwards from the origin3 units downwards from the origin3 units left from the origin3 units right from the origin
Answers
From the expression we can see that it is translated 3 units downwards from the origin.
The length of a rectangular billboard is 9 meters more than the width. If the perimeter is 42 meters find the dimensions.
Answers
Given, the perimeter of the rectangular billboard, P=42 m.
The length of the rectangular billboard is 9 m more than the width.
Let l be the length and w be the width of the rectangular billboard.
Then, the length can be expressed as,
[tex]l=9+w[/tex]The perimeter of a rectangle can be expressed as,
[tex]P=2(l+w)[/tex]Now, put l=9+w and P=42 m in the above equation to find w.
[tex]\begin{gathered} 42=2(9+w+w) \\ \frac{42}{2}=9+2w \\ 21=9+2w \\ 21-9=2w \\ 12=2w \\ \frac{12}{2}=w \\ 6m=w \end{gathered}[/tex]Hence, the length is,
[tex]\begin{gathered} l=9+w \\ l=9+6 \\ l=15\text{ m} \end{gathered}[/tex]Therefore, the length of the rectangular billboard is 15 m and the width of the rectangular billboard is 6 m.
Find an angle in each quadrant with a common reference angle with 41°, from 0°≤θ<360°
Answers
The angles in each of the four quadrants with a common reference to the acute angle 41° are as follows;
For 2nd quadrant; 139°.For 3rd quadrant; 221°.For 4th quadrant; 319°.Which angles in each quadrant have a common reference angle with 41°?It follows from the task content that the angles which have a common reference to the angle 41° in each quadrant he determined.
On this note, the angles can be determined from custom formulas for reference angles in each quadrant as follows;
For 2nd quadrant; θ = (180 - θ) = (180 - 41) = 139°.For 3rd quadrant; θ = (180 + θ) = (180 + 41) = 221°.For 4th quadrant; θ = (360 - θ) = (360 - 41) = 319°.Ultimately, the angles in each quadrant with a common reference alongside 41° are; 139°, 221° and 319°.
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the height, h meters, of a certain species of fir tree can be estimated from the formula h=35d2/3, where d meters is the diameter at the base. What is the approximate height of a fir tree with a base diameter of 3.2m
Answers
The approximate value of the height f the tree when the base diameter is 3.2 meters is 119.47 meters
How to approximate the height of the fir tree?From the question, the equation of the function of height is given as
h = 35d²/3
Also from the question, we have the base diameter of the fir tree to be
d = 3.2m
Next, we substitute 3.2 for d in the equation of the function of height given as
h = 35d²/3
So, we have the following equation:
h = 35 x 3.2²/3
Evaluate the exponent
So, we have
h = 35 x 10.24/3
Evaluate the product
So, we have the following equation:
h = 358.4/3
Evaluate the quotient
This gives
h = 119.47
Hence, the height is 119.47 meters
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Not sure what to do here.
Answers
The trigonometric ratios of the right triangle are as follows:
sin E = 12 / 13cos E = 5 / 13tan E = 12 / 5sin F = 5 / 13cos F = 12 / 13tan F = 5 / 12How to find the angles of right triangle?A right triangle is a triangle that has one of its angles as 90 degrees.
The side and angles of a right triangle can be solved using trigonometric ratios.
The ratios of the sides of a right triangle are called trigonometric ratios.
A right angle triangle has the opposite side, adjacent side and hypotenuse side depending on the angles location.
Using ratios,
sin ∅ = opposite / hypotenuse
cos ∅ = adjacent / hypotenuse
tan ∅ = opposite / adjacent
Therefore,
sin E = 12 / 13cos E = 5 / 13tan E = 12 / 5sin F = 5 / 13cos F = 12 / 13tan F = 5 / 12learn more on right triangle here: https://brainly.com/question/15284655
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What is x/3 + 6 - 2x = -6?
Answers
Answer: 7.5
Step-by-step explanation: 2 x 7.5 = 15
3 + 6 - 15
9 -15
-6
What percent of 933 is 391.83?
Answers
Answer:
42%
Tell me if you need expalining!
Step-by-step explanation:
Is the sequence {3, 6, 12, 6, 3, ...} a function? Explain.
Answers
The sequence {3, 6, 12, 6, 3, ...} is not a function
How to determine the function type?The sequence is given as
{3, 6, 12, 6, 3, ...}
In the above sequence, we can see that the sequence has repeated numbers
The repeated numbers are 3 and 6
These numbers are repeated twice
For a sequence of numbers to represent a function, the numbers in the sequence must be distinct
Hence, the sequence is not a function
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Albert invested money into the stock market, and the table represents his earnings. What type of function could be used to model his bank account as a function of time? Justify your answer.
Week Balance ($)
1 428
2 620
3 812
4 1,004
This is an exponential function because there is a common difference in the balance between the weeks.
This is an exponential function because there is a common ratio in the balance between the weeks.
This is a linear function because there is a common difference in the balance between the weeks.
This is a linear function because there is a common ratio in the balance between the weeks.
Answers
The correct option regarding whether this is an exponential or linear function is given as follows:
This is a linear function because there is a common difference in the balance between the weeks.
When a situation is modeled by an exponential function, and when the situation is modeled by a linear function?The function will be linear or exponential depending if there is a common difference or a common ratio between the terms, as follows:
If there is a common difference between the terms, that is, if the difference between consecutive terms is the same, a linear function models the situation.If there is a common ratio between the terms, that is, if the quotient between consecutive terms is the same, an exponential function models the situation.From the given table, the differences are given as follows:
1004 - 812 = 192.812 - 620 = 192.620 - 428 = 192.The differences are the same, hence it is a linear function and the correct option is:
This is a linear function because there is a common difference in the balance between the weeks.
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Answer:
The correct answer is (C) This is a linear function because there is a common difference in the balance between the weeks.
Step-by-step explanation:
The person up top is correct
Each student read 41 pages in December How many total pages did the students read by the end of December? and there are
27 students!
data:
september: chapter 1, 35 pages.
october: chapter 2, 38 pages
november: chapter 3, 35 pages
december: 41 pages.
Answers
total 4023 pages the 27 students read by the end of December
Step-by-step explanation:
35 + 38+35+41 = 149
27 students
149 × 27
4023 pages 27 students reads in this given four month
how many packages of diapers can you buy with 40$ if one packages cost 8$. this is a one step equation
Answers
In order to determine how many packages of diapers you can buy, it is only necessary to divide the total money you have, between the price of each package.
You have:
available money = 40$
package cost = 8$
Then, you calculate the quotient between available money and package cost:
[tex]\frac{40}{8}=5[/tex]Hence, you can buy 5 packages of diapers with 40$
If a polynomial f(x) has a remainder of 8 when divided by x-4, what is f(4)?
f(4) =
Answers
Answer: [tex]f(4)=8[/tex]
Step-by-step explanation:
The Remainder Theorem states, "If a polynomial [tex]p(x)[/tex] is divided by the binomial [tex]x-a[/tex], the remainder obtained is [tex]p(a)[/tex]."
In this case, we are given the polynomial [tex]f(x)[/tex], and the polynomial [tex]f(x)[/tex] is divided by the binomial [tex]x-4[/tex]. If you were to plug in [tex]4[/tex] for [tex]x[/tex] in [tex]f(x)[/tex], you would get [tex]f(4)=8[/tex] as a result of the binomial theorem.
A full moon occurs every 30 days. If the last full moon occurred on a Friday, how many days will pass before a full moon occurs again on a Friday?
(I wrote the problem correctly, and its not 30)
Answers
Answer:
210 days
Step-by-step explanation:
7 x 30 = 210 days
Answer:
210
Step-by-step explanation:
A Friday occurs every 7 days.
A new moon occurs (approximately) every 30 days.
We need the smallest number that is a multiple of both 7 and 30.
We need the least common multiple (LCM) of 7 and 30.
This is the same as finding the least common denominator for two fractions that have denominators 7 and 30.
First, we find the prime factorizations of the two numbers.
7 = 7
30 = 2 × 3 × 5
The LCM is the product of common and not common factors with the larger exponent.
LCM = 2 × 3 × 5 × 7 = 210
Answer: 210
P.S. This is the correct answer for this problem, but the problem is stated incorrectly since a new moon occurs approximately every 29.5 days, so in reality, the true answer is not 210 days.
Quadrilateral EFGH is inscribed inside a circle as shown below. Write a proof showing that angles H and F are supplementary.
Answers
Given
Find
showing that angles H and F are supplementary.
Explanation
Let angle F , which is subtended by minor arc GHE.
so , angle F = half of angle GHE by subtended angle theorem.
similarly , angle H is the angle subtended by major arc GFE.
so , angle H = half of the angle subtended by major arc.
since , total angle around J is 360 degree.
as we know , the sum of angle subtended by minor arc and major arc is 360 degree.
so , angle F + angle H = 1/2(360) = 180 degree.
Final Answer'
Hence , H and F are supplementary angles.
Determine whether the two figures are similar.
Answers
The two triangles are similar.
How to find similar triangles?Similar triangles are triangles that have the same shape, but their sizes may vary.
Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion .
The side lengths of two similar triangles are proportional. That is, if ΔABC is similar to ΔDEF , then the following equation holds:
AB / DE = AC / DF = BC / EF
Hence,
6 / 3 = 10 / 5 = 8 / 4 = 2 / 1
This common ratio is called the scale factor .
The symbol ∼ is used to indicate similarity.
Therefore, the triangles are similar.
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Rachel got a prepaid debit card with $30 on it. For her first purchase with the card, she bought some bulk ribbon at a craft store. The price of the ribbon was 21
cents per yard. If after that purchase there was $20.97 left on the card, how many yards of ribbon did Rachel buy?
Answers
43 yards because she spent 9.03 cents on ribbon 9.03 divided by 0.21=43
PLEASEEEEEEEE HELPpppppppp
Answers
As per the distance concept, the speed of the buses are 79 km/h and 69km/h if the two buses leave a station at the same time and travel in opposite directions.
Distance
Distance refers the physical length or an approximation based on other physics or common usage considerations.
Given,
Two buses leave a station at the same time and travel in opposite directions. One bus travels 10 slower than the other. If the two buses are 276 miles apart after 2 hours,
Here we need to find the rate of each bus.
Let us consider the speed of the first bus is x km/h.
Then the speed of the other bus = (x - 10) km/h
We know the formula of distance is,
Distance = time × speed
When we combined speed then we get,
=> x + x - 10 = (2x - 10) km/h
=> 2(2x - 10) =276
When we expand the equation, then we get,
4x - 40 = 276
4x = 316
After calculating,
x = 79 km/h
The speed of first bus x = 79 km/h
Speed of the second bus = x - 10 = 79 - 10 = 69 km/h
Therefore, the speed of the buses are 79 km/h and 69/km/h if the two buses leave a station at the same time and travel in opposite directions.
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Ratio and rates pls help me
Answers
Answer:
Step-by-step explanation:
5 parts blue
yellow: 3 parts
WE SHOULD HAVE DONE EQUAL COLOURS FOR A GOOD RESULT?
State whether the Law of Detachment, the Law of Syllogism, or the Law of the
Contrapositive was used to draw the conclusion from the given statements. If it's an
invalid conclusion, write invalid.
If you go fishing, then you will need to bring your fishing rod.
If you go fishing, then you will need to bring bait.
Therefore, if you bring your fishing rod, then you will need to bring bait.
Law of Detachment
Law of Syllogism
Law of Contrapositive
Invalid Conclusion
Answers
The statement can be described as an Invalid Conclusion.
What is an invalid conclusion?An invalid conclusion arises from a series of statements where the premises are true but the conclusion is not true. The premises in the statements above are all true.
For instance, it is true that if you go fishing you will need a rod. It is also true that if you go fishing you will need bait. But there is no laid down rule that if you bring your fishing rod, you will also need to bring a bait. So, this is an invalid conclusion.
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