Aclass of 25 students took a math test. ten students had an average of 88. the other students had an average of 76. what is the average of the whole class? a) 78.2 b) 80.8 c) 81.7 d) 82.5

F(x)= 1/x-4, g(x)=4x+1/x a. use composition to prove whether or not the functions are inverses of each other. b. express the domain of the compositions using interval notation.

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2