Mathematics, 13.07.2019 14:00 lukecoupland4401
The volume of a sphere is 972 pie in cubic inches. what is the radius
Answers: 2
![\bf \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\ -----\\ V=972\pi \end{cases}\implies 972\pi =\cfrac{4\pi r^3}{3}\implies (3)972\pi =4\pi r^3 \\\\\\ \cfrac{2916\pi }{4\pi }=r^3\implies 729=r^3\implies \sqrt[3]{729}=r\implies 9=r](/tpl/images/0084/9947/376ce.png)
, or π, not pie.
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