Angela’s average for six math tests is 87. on her first four tests she had scores of 93, 87, 82, and 86. on her last test, she scored 4 points lower than she did on her fifth test. what scores did angela receive on her fifth and sixth tests?

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

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%

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?