The answer is 500/3 but how do you get the answer A sphere has a radius of 5 inches. What is its volume?

Sphere V = 4
3
πr3

1. Substitute the radius into the formula: V = 4
3
π(53)

2. Evaluate the power: V = 4
3
π(125)

3. Simplify: V =
⇒ 500/3Pi in.3

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?