Which of the following slopes show that the set of points c(1, 1), d(3, -4), e(5, 8) are not collinear?

a) 1/3, -5/3, -2/5
b) 1/2, 3, 5
c) -1, 1/2, -3/5
d) 6, -5/2, 7/4

What signals you that factoring by grouping is the best method to use when factoring a problem?

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

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.