Suppose that every student in a discrete mathematics class of 25 students is a freshman, a sophomore, or a junior.

a) show that there are at least nine freshmen, at least nine sophomores, or at least nine juniors in the class. b) show that there are either at least three freshmen, at least 19 sophomores, or at least five juniors in the class.

irrational, cannot

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

answer: you need the equation in the question so i can answer it

step-by-step explanation: