Simplify. 6x square + 5(2x square -x)-3x= (simplify your answer. do not factor.) show how you got your answer in steps

Which rational number could be graphed between -4 and -5

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 of the following describes the symmetry of the graph of y = x3?