The area of a sail is 40 1/2 square feet. The base and the height of the sail are equal. What is the height of the sail?(in feet)

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review

If on=8x-8,lm=7x+4,nm=x-5,and ol=3y-6

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