1. Which representation does not show y as a function of x? A) Answer F

B) Answer G

C) Answer H

D) Answer J

2. Which set of ordered pairs represents y as a function of x?

A) {(-9, 2), (0, 6), (1, -2), (-3, 6)}

B) {(-1, 0), (4, 3), (-7, -3), (-1, -8)}

C) {(3, 2), (-4, -2), (3, 1), (-4, 1)}

D) {(5, 4), (2, 3), (1, 1), (2, 4)}

the pic is for question 1

It says factor each expression 49x-28?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?