A crane is situated on the edge of a sheer cliff. It has a 12-foot arm that makes an angle of 120° with the horizontal and drops a hook straight down to a metal buoy that must be pulled from the water. How far is the center of the buoy from the cliff?​

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.