A person whose eye level is 1.5 meters above the ground is standing 75 meters from the base of the Jin Mao building in Shanghai, China. The person estimates the angle of elevation to the top of the building is about 80º. What is the approximate height of the building? Round your answer to the nearest meter.

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.