## College Algebra 7th Edition

$r=\sqrt[3]{\dfrac{3V}{4\pi}}$
Multiply $\frac{3}{4}$ to both sides to obtain: $\frac{3}{4}V=\pi{r^3}$ Divide $\pi$ to both sides to obtain: $\dfrac{\frac{3}{4}V}{\pi}=r^3 \\\dfrac{3V}{4\pi}=r^3$ Take the cube root of both sides to obtain: $\sqrt[3]{\dfrac{3V}{4\pi}}=r$