Friday
July 31, 2015

Homework Help: algebra

Posted by ken on Monday, November 1, 2010 at 6:52pm.

a storage bin is shaped like a cylinder with a hemisphere shaped top. the cylinder is 45 inches tall. the volume of the bin is 4131 pi cubic inches. find the radius of the bin.

i think [4(pi)r(cubed)]/3=volume of hemisphere

and h (pi) r squared volume of the cylinder.

so

[4(pi) r (cubed)/3] + [45 (pi) r squared= volume of bin

so

[4 r (cubed)/3] + [45 (pi) r squared=volume

how do i solve for r?

sorry, i'm stuck

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