Afraction with a sum in the numerator can be rewritten as the sum of two fractions with the same denominator. for example, 1+x2=12+x2.
challenge: in the space below, rewrite the quadratic formula as the sum of two fractions.

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 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%