The cost in dollars of producing x units of a particular brand of notebook is C(x) = x^2 – 400. a. Find the average rate of change of C with respect to x when the production level is changed from x = 100 to x = 102. Include units in your answer.
b. Find the instantaneous rate of change of C with respect to x when x = 100. Include units in your answer.

360/29

step-by-step explanation:

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2

the answer is b

add the numbers under frequency to find the total number:

5 + 8 +7 + 4 + 0 +1 = 25

the answer is 25.