Subtract and simplify: 4y/y^2-10y+21-1/y-3
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Let the length of the square base be x inches .
And the height of the box be y inch .
Volume = x*x*y
4000 = x *x *y
S = x*x + 2xy + 2 x y
S ' =0
x = 20
Let the length of the square base be x inches .
And the height of the box be y inch .
Volume = x*x*y
4000 = x *x *y
S = x*x + 2xy + 2 x y
S ' =0
x = 20