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Musya8 [376]
2 years ago
11

Y∝1√x If y=7 when x=64 find, x when y=8

Mathematics
1 answer:
Taya2010 [7]2 years ago
3 0

Answer:

uhm im really sorry about this but i really need points i would help but id get it wrong im bad aat math

Step-by-step explanation:

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If (x + 7) is a factor of f(x), what is the value of f(-7)?
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The answer is 0.

Step-by-step explanation:

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You can then just add -7 and 7.

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A sphere and a cylinder have the same radius and height. The volume of the cylinder is 21 meters cubed. A sphere with height h a
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We have been given that a sphere and a cylinder have the same radius and height. The volume of the cylinder is 21 meters cubed. We are asked to find the volume of the sphere.  

We know that height of sphere is equal to its radius. This means that r=h.

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Using r=h, we will get:

\text{Volume of cylinder}=\pi r^2\cdot r

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Upon comparing volume of sphere and volume of cylinder, we can see that volume of sphere is \frac{4}{3} times volume of cylinder.

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\frac{4}{3}\pi r^3=4\cdot 7

\frac{4}{3}\pi r^3=28

Therefore, the volume of the sphere would be 28 cubic meters.

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