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joeroafan
Lv 4
Clac Help!!!!!!!!!!!!!!!?
A box with a square base and open top must have a volume of 4000 cm3. Find the dimensions of the box that minimize the amount of material used.???
If ya get it to me quick ill give ya the pts?
1 Answer
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- flyingtiggerukLv 71 decade agoFavorite Answer
Vol = x^2*h
Material = base + 4 sides = x^2+4*x*h
h = Vol/x^2
Material = x^2+4*x*(Vol/x^2) = x^2+4*Vol/x
differentiate dMaterial/dx and at minimum = 0.
Find x, knowing vol = 4000.
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