In a particular classroom, a student who did not study scored 60 points on a test. if that student scored 90 points when studying for three hours, what is the rate of change of his score per hour studied?

The function g(x) is defined as shown. x-1, -2 g(x) = 2x+3, -1 6-x, x23

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms