StartFraction n Over 39 EndFraction = StartFraction 8 Over 13 EndFraction a. n = 32 c. n = 24 b. n = 2 and two-thirds d. n = 63 and StartFraction 3 Over 8 EndFraction

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%

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?