Question

A box is to constructed with a rectangular base and a height of 5cm. If the rectangular base must have a perimeter of 28cm, which quadratic equation best models the volume of the box ? A. y=5(28-8)(x) B.y=5(28-2x)(x) C. y=5(14-x)(x) D. y=5(14-2x)(x)

Answer 1

Answer:

C. y=5(14-x)(x)

I got it right on the Edgenuity test

Answer 2

Bearing in mind that a rectangle has a perimeter of length + length + width + width.

P = perimeter
L = length
x=width

P = 2L + 2x
P = 2(L+x)     <==== perimeter of the base of the box.

check the picture below.