SOLUTION: "solve the problem" A closed box with a square base is required to have a volume of 10 cubic feet. Express the amount of material used to make such a box as a function of the leng

Question 248641: "solve the problem" A closed box with a square base is required to have a volume of 10 cubic feet. Express the amount of material used to make such a box as a function of the length x of a side of the square base?
I tried to start with f(x)=10/x+x

thanks for any help
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = height
Let = side of square base
The volume is

given:

The area of the closed box is:

m2 answer
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