Rewrite x^5+5r^3-9r+1 in the form q(x)+r(x)/b(x). what is q(x)? a. x7 + 11x5 + 21x3 + x2 − 54x + 6 b. x5 + 5x3 − 9x + 1 c. x5 + 5x3 − 9 d. x3 − x

Which expression is equivalent to 4 square root 6 divided by 3 root 2

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

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%