A river flowing southward has a current of 4 miles per hour. A motorboat in still water maintains a speed of 15 miles per hour. The motorboat starts at the west shore on a bearing of N ​40° E. What is the actual speed and direction of the​ boat The actual speed of the boat is approximately
miles per hour

The actual bearing of the boat is north blank degrees east

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Me find the value of x each figure.

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?