Answer:
1: d. 3054^3
2: d. 20x
Explanation:
1)
Well to find the volume of a sphere we use the following formula,
So the radius is 9.
9*9*9 = 729
729*pi = 2290.22104447
So it is 2290 rounded to the nearest whole number.
2290 * 4/3 = 3053.3333333
Thus,
the answer is d.
____________________________________________________________
So we have to factor 25x^2 - 9,
which is
.
So if the l and w are 5x + 3 and 5x - 3,
= 10x
10x + 10x = 20x,
Thus,
the answer is d. 20x
Hope this helps :)