8. Of the 30 students in Bob's exercise class, 80% drive to class. The rest walk or ride
bicycles. How many of the students do not
drive to the class?
(2) 8
(3) 12
(4) 15
(5) 20

the answer is d on edge

step-by-step explanation:

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.