Function Machines: a) If an input of is put into each of the machines at right, what is each output?

b) Eric wants to get an output of . Can he do this with each machine? If so, how? If not, why not?

No clear instructions on whether answer is expected to be a real number or not. If I input -9 to machine on the right, y would be square root of -9 minus 2, so y = 3i - 2?

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

What is r i 4.5+10r=-6.5 with work pls

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?