Which of the following list of pairs is a function? a. (-1,2)(2,3)(3,1)(2,5) b. (2,5)(3,6)(2,1) c. (2,5)(3,6)(6,9) d. (1,2)(4,0)(3,5)(4,3)

Aboard game uses a fair six-sided die and a spinner with five equal-sized sections colored dark blue, green, light blue, red, and yellow. players roll the die and then spin the spinner. match each probability statement to its correct value.

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%

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?