base area = (w-14)(w-14)
h = 7
volume = 7 (w-14)^2 = 16128
w^2-28w+196 = 2304
w^2 - 28 w - 2108 = 0
(w-62)(w+34) = 0
w = 62
A box with a square base and no top is to be made from a square piece of carboard by cutting 7 in. squares from each corner and folding up the sides. The box is to hold 16128 in3. How big a piece of cardboard is needed?
?in by ?in
2 answers
side of base = x-14
height = 7
solve
7(x-14)^2 = 16128
(x-14)^2 = 2304
I will let you finish it.
height = 7
solve
7(x-14)^2 = 16128
(x-14)^2 = 2304
I will let you finish it.
4 answers