Find the length of the longer side of race angle abcd in the graph.

a. 18 units
b. 9 units
c. 10 units
d. 5 units

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

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%

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x