When building a roof, carpenters put vertical boards every 2 feet along the horizontal baseline. The height of the boards, y, for the roof shown can be represented with the equation: y = 0.4x,
where x is the horizontal distance from the nearest corner. How far from the corner is the board that is 4 feet tall?

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?