Three pipes a, b and c take 24, 36 and 32 hours to fill a pool, respectively. how long would it take the three pipes to fill the pool if pipe b is turned on 3 hours after pipe a and pipe c is turned on 1 hour after pipe b?

17 in long 1.3 ft wide and 8in high what is the volume

What percent of the circle below is shaded?

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%