Question: a box with a square base and no top must have a volume of 10,000cm^3. if the smallest dimensions in any direction is 5cm, the determine the dimensions of the box that minimize the amount of material used.
(isolate for y using given volume in V equation to obtain y=10,000/x^2)
The Attempt at a Solution
I have an answer on what the dimensions are, but what do i use as my limitations besides what my x values are. I know i have to use x>or=5....for some reason i can never figure these limitations/restrictions out...