Question

you are planning to make an open rectangular box froman 8-by15in piece of cardboard by cutting squares from the corners and folding up the sides. What are the dimensions of the box of largest volume you can make this way, and what is its volume?

Answer 1

V = x(15-2x)(8-2x)
Multiply it out, take the first derivative, set it equal to 0 and solve.

Answer 2

thank you(:

Answer 3

yw