In AABC, m2A = 87° and m2 B= 23°. Select the triangle that is similar to AABC.
A. APQR, in which m2p=110° and
mZR= 23°
O B. ASTU, in which m2 S = 87° and
mzU= 70°
O C. ALMN, in which mZM = 20° and
m2N= 87°
O D. AXYZ, in which m2 X = 87° and
m2 Z= 50°

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?