Suppose that a is a nonempty set, and f is a function that has a as its domain. let r be the relation on a consisting of all ordered pairs (z, y) such that f(x) = f(y). (a) show that r is an equivalence relation on a (b) what are the equivalence classes of r?

Ineed or else im in trouble need a random sample of 240 park users were asked if they go to the park more often on weekdays or on the weekend. the results are shown in the table. weekdays weekend male (50) (10) female (150) (30) based on the data in the table, select correct or incorrect for each statement. correct or incorrect 1.the males go to the park more often on the weekend. 2.the females go to the park more often on weekdays. 3.for the participants in the survey, gender affects which days of the week a person goes to the park.

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4