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2 years ago

Please help! I’ll give points if it’s correct!

Mathematics

2 answers:

Levart [38]2 years ago

7 0

Answer: 9/64 and 81x^4/y^4

Step-by-step explanation:

For the first, put both the numerator and denominator to the power of 2.

For the second, put both the numerator and denominator to the power of 4.

skelet666 [1.2K]2 years ago

5 0

Answer:

30.(3/8)^2=9/64

32.(3x/y)^4=81x^4/y^4

Hope This Helps!!!

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Keisha counted 458cars and Simon counted 509cars. Estimate how many more cars simon counted by rounding to the nearest ten and t

Fittoniya [83]

509-458 = 49. hope this helps :)

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3 years ago

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Please help :)<br> .....................

Kay [80]

There are web sites and videos that stand ready to show you how to bisect an angle.

The basic idea is that you draw an arc through both rays so that the points of intersection are the same distance from the vertex. Then, you construct a perpendicular bisector of the segment between those intersection points. That will bisect the angle.

For (3), you bisect each of the angles made by the original bisector. (1/2 of 1/2 = 1/4)

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3 years ago

From data gathered in the period 2008−2012, the yearly value of U.S. exports can be modeled by the function E(x) = −228x3 + 2,25

vredina [299]

Answer:

The total value the U.S. imported and exported is 19364 billion dollars

Step-by-step explanation:

* Lets explain how to solve the problem

- The yearly value of U.S. exports can be modeled by the function

E(x) = −228 x³ + 2,252.8 x² − 6,098.5 x + 11,425.8

# x is the number of years after 2008

# E(x) is the value of exports in billions of dollars

- The yearly value of U.S. imports can be modeled by the function

I(x) = −400.4 x³ + 3,954.4 x² − 11,128.8 x + 17,749.6

# x is the number of years after 2008

# I(x) is the value of imports in billions of dollars

* We need to calculate the total value the U.S. imported and

exported in 2012

∵ x is the number of years after 2008

∴ At 2012 x = 4 years

- Lets calculate the value of the exports in 2012

∴ E(x) = -228(4)³ + 2,252.8(4)² - 6,098.5(4) + 11,425.8

∴ E(x) = 8484.6 billion dollars

- Lets calculate the value of the imports in 2012

∴ I(x) = -400.4(4)³ + 3,954.4(4)² - 11,128.8(4) + 17,749.6

∴ I(x) = 10879.2 billion dollar

∵ The total value the U.S. imported and exported = E(x) + (I(x)

∴ The total value = 8484.6 + 10879.2 = 19363.8

∴ The total value = 19364 billion dollars

* The total value the U.S. imported and exported is 19364 billion dollars

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3 years ago

Problem 5. A skating rink in the shape shown has an area of

nexus9112 [7]

Answer:

$P=\dfrac{\pi r^2+2800}{r} $ ft$

Step-by-step explanation:

Let the length of the rectangular part =l

The width will be equal to the diameter of the semicircles.

Area of the Skating Rink= $2(\frac{\pi r^2}{2})+(lX2r)$

Therefore:

$\pi r^2+2lr=2800\\2lr=2800-\pi r^2\\$Divide both sides by 2r\\l=\dfrac{2800-\pi r^2}{2r}$

Perimeter of the Shape =Perimeter of two Semicircles + 2l

$=2\pi r+2\left(\dfrac{2800-\pi r^2}{2r}\right)\\=2\pi r+\dfrac{2800-\pi r^2}{r}\\=\dfrac{2\pi r^2+2800-\pi r^2}{r}\\=\dfrac{\pi r^2+2800}{r}$

The perimeter of the rink is given as:

$P=\dfrac{\pi r^2+2800}{r} $ ft$

4 0

2 years ago

Given g(x) where f(x)= 3x-1 and g(x)= f(x+1). graph

tatiyna

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

$f(x)=3x-1$

we know that

To find out the function f(x+1) exchange the variable x for (x+1) in the function f(x)

$f(x+1)=3(x+1)-1$

$f(x+1)=3x+3-1$

$f(x+1)=3x+2$

therefore

$g(x)=3x+2$

using a graphing tool

see the attached figure

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3 years ago

Read 2 more answers