Let f(x)=x2+6x+11. what is the average rate of change from x = 5 to x = 8? enter your answer in the box.

The correct answer is 19

The average rate of change is 19.

Step-by-step explanation: The given function is

We are to find the average rate of change from x = 5 to x = 8.

We know that if for a function f(x), f(a) = b and f(c) = d, then the average rate of change from x = a to x = c is given by

For the given function, we have

Therefore, the average rate of change from x = 5 to x = 8 will be

Thus, 19 is the required average rate of change.

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!

126 maybe. sorry