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2 years ago

The volume of a sphere is 3,000 m^3. What is the surface area of the sphere to the nearest square meter?

Mathematics

1 answer:

vovangra [49]2 years ago

3 0

Answer:

Step-by-step explanation:

V=4 /3πr3

3000=1 1/3*3.14*r*r*r

3000=4.18666667*r*r*r

716.560509= $r^{3}$

Cube root the number

8.94851471456=r

TSA=4 $\pi$ $r^{2}$

TSA=4*3.14*8.94851471456*8.94851471456

TSA=1006.26

Since we used different numbers for pi and I rounded our answer will be different but the answer is C

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Let v1=(3,5) and v2=(-4,7).

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PART B

To find the unit vector in the direction of a given vector, we divide by the magnitude of that vector.

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Rationalize the denominator.

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PART C

The sketch of the given vectors as well as their unit vectors are shown in the attachment.

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