A bus is at P, a place 250km east from Q. Travelling a distance of 400 km to due west of P it reaxhes at R. Express this information by scale drawing and find the distance from Q to R and the bearing of Q to R. With process​

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Find the pattern and use it to list the nth term in the sequence. 6, 12, 20, 30, 42, 56, the nth term of the sequence is

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.