In the right-angled triangle PQR shown, PR = 2.19 m and QR = 0.92 m.
0.92m
Р.
R
2.19 m
Diagram not drawn to scale
Calculate the length PQ.
[3]

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 is he correct? explain why or why not?

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.

Write an inequality for this sentence the quotient of a number and -5 increased by 4 is at most 8