A) If the area of a rectangle is 36, then the length is 12 and the width is 3. Counterexample: length
I width
-) If 21 and 22 are complementary angles, then one of them must have a
measure less than 45
Counterexample: m 21 = D, m 22 = 0
If the length of AC is 20 and point B lies on AC, then AB - 10 and BC - 10.
Counterexample: AB - .BC -
If the measures of ZR, ZS, and T sum to 180°, then one of the angles must
be obtuse.
Counterexample: m ZR - ), m ZS - I'm T -

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.