You drive from your home to a vacation resort 530 miles away you return on the same highway the average velocity on the return trip is 5 mph slower than the average velocity on the outgoing trip express the total time required to complete a road trip, tea, as a function of the average velocity on the outgoing trip, X

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95

(25 ! ) what does it mean for an equation to have no solution or infinitely many solutions?

1.)solve for z. -52=-4z 2.)solve for p 9/2.3=9.2 3.)solve for y. -1.17y=5.85 4.)solve for x. 3x/8=6