The graph of the function f and a table of selected values of () are shown below. The graph of f has a horizontal tangent line at = 4 and is linear for ≥ 6. a. Approximate the value of ′(5.5) using data from the
table. Show the computations that lead to your answer.
b. Is there a value of x, for 0 < < 6, such that
limℎ→0 ((+ℎ)−())/ℎ= 0 ? Give a reason for your answer.
c. For each of the following limits find the value or explain why it does not exist. (derivative limit formula where x=6)
*please check JPG file!*

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?

Tan198=asin164=? how to solve this? ?