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Answer 1 · 2017-12-22T06:14:47

$r=1.53$ $\text{inches}$ is the required radius of sphere rouded to the nearest hundredth.

In the given formula, we need to put the value of volume, so by putting, we will get:

$15 \text{in}^3 = 4/3\pi r^3$

Put the value of $\pi=3.14$ and we will have:

$15 \text{in}^3 = 4/3(3.14) r^3$

Solve the equation for $r$ , so that we have:

$r^3={15\times3}/{4\times3.14}$

Taking cube root, we have:

$r=1.53$ $\text{inches}$