If LK = MK, LK= 7x-10, KN= x+3, MN= 9x-11, and KJ= 28, find LJ

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 statement describes surface features called maria on the moon

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle