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I have posted a link there to this thread so the OP can view my work.Can you solve this Calculus problem?

I need help.

Solve using Related Rates or Optimization.

Bob is building a silo to store 1000 ft^3 of hay. Find the minimum amount of material and the dimensions of the silo to achieve it. Since his silo is a cylinder topped with a hemisphere, the formulas are as follows:

V=pi x r^2 x h + (2/3)pi x r^3

SA= 2 x pi x r x h + 2 x pi x r ^2