Which of the following matrix equations correctly represents this system of equations? 4x + 5y = -9
x+3y= -4

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.

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?

Find the volume of the wedge cut from the first octant by the cylinder z=12-3y^2 and the plane x+y=2.