An alloy is a mixture of metals. suppose that a certain alloy is made by mixing 50 grams of an alloy that 52% copper with 78 grams of pure copper. how many grams of copper are in the resulting mixture? what percent of the resulting mixture is copper?

Ihave trouble finding the nth term of a linear sequence

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.

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?