Question

3, 4, 5, or 6 inches? Help plz

Answer 1

5 in

Explanation:

x = number of in cut from each side

V = 750

V=lwh

l = 25 -2x

w = 20-2x

h =x

V = (25-2x)(20-2x)x

(25-2x)(20-2x)x = 750

4x^3-90x^2+500x-750=0

Factor it and solution is 5/2,5,15

Answer 2

3 inches

Explanation:

25*20*h=750

500h=750

h=1.5

Height*2 = length of one of the cut corners

1.5*2=3

Therefore, 3 inches