Question

A box is to be formed by cutting square pieces out of the corner of a rectangular piece of a 3" x 5" notecard as shown in the diagram. The sides will then be folded up along the dotted lines to form the box.

a.) Write the function that expresses the area of the bottom of the box as a function of the length of the sides of one of the square pieces.

b.) How large should x be in order for the area of the bottom of the box to equal 10 in^2? Round your answer to the nearest hundredth of an inch.

Answer 1

calc question ?

Answer 2

Pre-cal yea.
This is my last question I need to answer for this assignment but I keep getting it stuck and I'm not even sure I'm working it out right.

Answer 3

the sides of the bottom is (3-2x)* (5-2x)

Answer 4

15-16x+4x^2?