During a recent period of time compact discs sales have been declining. The sales (billions of dollars) can be modeled by the function (f)t= -9/7t+17.9, where T is the number of years since 2005. Suppose sales decreased at twice the rate. How can you transform F to model the sales? a. vertically shrink by a factor of 1/2

b. vertically stretch by a factor of 2

c. horizontally shrink by a factor of 1/2

d. horizontally stretch by a factor of 2

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?