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abruzzese [7]
2 years ago
5

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 :)
4 0
3 years ago
Read 2 more answers
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)
8 0
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

7 0
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)

so

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

5 0
3 years ago
Read 2 more answers
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