Identify the polynomial.

a 2 - b + c - d 3

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

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%