Find the perimeter of the rectangle ABCD with vertices A(-1,5), B(-4,2), C(1,-3), and D(4,0)

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%