A jet ski left port B traveling towards port A, at the same time a raft started traveling from port A towards port B. The jet ski and the raft met each other 4 hours after the departure, and 20 minutes later the jet ski reached port A. How long does it take for the raft to cover the distance between ports A and B?

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).