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a farmer is tracking the amount of wheat his land is yielding each year. he finds that the function f(x) = −x2 + 20x + 75 models the crops in pounds per acre over x years. find and interpret the average rate of change from year 5 to year 15.

the crop yield increased by 150 pounds per acre from year 5 to year 15.

the crop yield decreased by 15 pounds per acre from year 5 to year 15.

the crop yield decreased by 5 pounds per acre from year 5 to year 15.

the crop yield did not change from year 5 to year 15.

Average rate of change is 0

Interpretation: The crop yield did not change from year 5 to year 15

Solution:

The function that models the yield is:

The average rate of change of f(x) from x = a to x = b is given by the formula:

Find and interpret the average rate of change from year 5 to year 15

Thus average rate of change:

Thus Average rate of change is 0

Interpretation: The crop yield did not change from year 5 to year 15.

his chances of getting a coin of higher value is 4/19

step-by-step explanation:

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6