Amir stands on a balcony and throws a ball to his dog, who is at ground level. The ball's height (in meters above the ground), xxx seconds after Amir threw it, is modeled by h(x)=-(x+1)(x-7)h(x)=−(x+1)(x−7)h, (, x, ), equals, minus, (, x, plus, 1, ), (, x, minus, 7, )How many seconds after being thrown will the ball reach its maximum height?

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.

What is the equation of a line that passes through points (0, 4) and (-4,-8)?

Find the derivative of the function