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4 years ago

12

Please help. Using the figure below, calculate the surface area and the volume. Show all of your work and round your answer to t

he nearest whole number.
A. Calculate the volume.

B. Calculate the surface area.

1 answer:

wlad13 [49]4 years ago

3 0

Did you ever get the answers sis i need them

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3 years ago

What is the slope of the line that passes through the points (10, 5)<br> and (9, 5) ?

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3 years ago

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3 years ago

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3 years ago

4/y+2 - 9/y-2 = 9/y^2-4

Evgesh-ka [11]

Going off the idea that this is 4/(y+2) - 9/(y-2) = 9/(y^2-4), let's first rewrite y^2-4 in the form of a^2-b^2, where a=y and b=2.
y/(y+2)-9/(y-2)=9/(y^2-2^2)
Now, use difference of squares: a^2-b^2=(a+b)(a-b)
4/(y+2)-9/(y-2)=9/((y+2)(y-2))
Multiply both sides by the Least Common Denominator: (y+2)(y-2)
4(y-2)-9(y+2)=9
Then keep on simplifying until you get your answer
-5y-26=9
-5y=9+26
-5y=35
y=35/-5
y=-7
Yay! Our answer is y=-7!

8 0

3 years ago

Read 2 more answers