Answer:
d. 288π in3
Step-by-step explanation:
The volume of a sphere is given by
V = 4/3 pi r^3
The radius is 6
V = 4/3 pi 6^3
V = 288 pi in^3
grand coulee dam (g) contains 2.5 times as much concrete as the hover dam (h)
Therefore,
g = 2.5 * h
h = 3.5 million
g = 2.5 * 3.5
g = 8.75 million yards of concrete
