Acone-shaped pile of gravel has a diameter of 30 m and a height of 9.1 m.
which estimate best approximates the volume of the pile of gravel?
2120 m³
2600 m³
6360 m³
8480 m³

 The correct option is (A) 2120 m³.

Step-by-step explanation:  Given that a cone-shaped pile of gravel has a diameter of 30 m and a height of 9.1 m.

We are to select the correct option that estimate best approximates the volume of the pile of gravel.

The VOLUME of a cone with radius 'r' units and height 'h' units is given by the formula:

In the given cone-shaped pile, diameter of gravel is 30 m, so its radius will be

and height, h = 9.1 m.

Therefore, the volume of the cone-shaped pile is

Out of the given options, only 2120 is the nearest one, so the best approximate will be 2120 m³.

Thus, (A) is the correct option.

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).

4th option is correct xy=-10

if this was to u plzz mark me the brainliest