Select the polynomial that is a perfect square trinomial. Group of answer choices

x2 + 20x + 100

x2 + 8x + 64

x2 + 10x + 50

x2 + 21x + 49

Recall the definition of a polynomial expression. find two polynomial expressions whose quotient, when simplified, is. use that division problem to determine whether polynomials are closed under division. then describe how theother three operations-addition, subtraction, and multiplication-are different from division of polynomials.

What is the volume of the sphere shown below with a radius of 3?

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%