Question

The formula for the volume of a sphere is V= 4/3 pie r^3. Find the radius, to the nearest hundredth, of a sphere with a volume of 15 in.3.

Answer 1

This is what the question looks like

Answer 2

ok... so the task is to make r the subject of the equation


\[15 = \frac{4}{3} \pi r^3\]

multiply both sides by 3 then divide both sides by 4 gives

\[\frac{45}{4} = \pi r^3\]

divide both sides by pi

\[\frac{45}{4\pi} = r^3\]

take the cube root to find the answer