Problema Solution
an open-top rectangular box has a square base and it will hold 103 cubic centimeters (cc). Each side has a length x cm, and it has a height of y cm. Express the surface area as a function of the length of x of a side of the base.
Answer provided by our tutors
the volume of the box is
(x^2) * y = 103
y = 103/(x^2)
the surface area is
A = x^2 + 4*x*y
plug y = 103/(x^2) into the last equation
A = x^2 + 4*x*103/(x^2)
A = x^2 + 412/x