Two similar cones have matching heights and radii whose lengths are in the ratio 7:1 Find the ratio of their surface areas.

surface area is πr(r+h2+r2)

Step-by-step explanation:

surface area is 8

step-by-step explanation:

20% of 120 is 24. if you subtract 24 from 120 you get 96

  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).