Let f(x) = 2x2 + x - 3 and g(x) = x -
find
and state its domain.
g(x)
2x + 3; domain is the set of all real numbers except 1
x - 1; domain is the set of all real numbers
2x + 3
; domain is the set of all real numbers except 1
x -1
x-1.
-; domain is the set of all real numbers except
2x + 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%