2 Question 6 Frankie solved the equation below. What mistake did Frankie make? - 2.3x – 3.9 + 1.2x – 4.6 = 2 3.5x – 8.5 = 2 3.5x = 10.5 - x = 7 A Frankie did not combine 3.9 and 4.6 correctly. B Frankie subtracted 3.5 from both sides instead of dividing both sides by 3.5. C Frankie did not combine 2.3x and 1.2x correctly 1 Frankie did not make an error in his work.

Which system of linear inequalities is represented by the graph?

Given the equation y − 4 = three fourths(x + 8) in point-slope form, identify the equation of the same line in standard form. −three fourthsx + y = 10 3x − 4y = −40 y = three fourthsx + 12 y = three fourthsx + 10

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?