Me answer this if you can. a right triangle has side lengths of 3, 4, and 5. what are the angle measures of the two acute angles to the nearest tenth?

In the diagram of circle a what is m

For the equations below which statement is true ?

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%