Posted by **melinda** on Thursday, January 12, 2012 at 10:05pm.

How do you setup the equation for this?

Thanky ou!

Find the ratio of the surface area of a cylinder to the volume of the cylinder if the height remains at 10 cm. Simplify this ratio and let f(x) = the simplified ratio. Let r be the radius of the cylinder.

a) Find the average rate of change as the radius increases from 2 to 5 cm.

b) Is the ratio increasing of decreasing? justify answer based on part a.

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