Suppose ø is an angle in the standard position whose terminal side is in Quadrant I and tan ø = 60/11

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%

Which is f(5) for the function –2x2 + 2x - 3?

3x = 729 solve for x plz . it's urgent. will mark