Aball is thrown straight up from the top of a building 132 ft. tall with an initial velocity of 48 ft per second. the distance s(t) (in feet) of the ball from the ground is given by s(t) = 132 + 48t − 16t2. find the maximum height attained by the ball.

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?