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OpenStudy (anonymous):
Write an equation that describes the following variation. V varies directly with the cube of r. V=28pi when r= 4.
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OpenStudy (anonymous):
V=k*r^3 ==> k=28 pi /4= 7 pi ==> \[ V=7\pi r^{3}\]
OpenStudy (anonymous):
|dw:1316764802933:dw||dw:1316764939535:dw|
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