(b) The diagram below shows a quadrilateral PQRS where PQ and SR are parallel, SQ = 8 cm,
ZSPQ = 90°, ZSQR = 82º and ZQSR = 30°.
P
Q
820
8 cm
30°
S
R
Determine
(i)
the length PS

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?

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120

What is the measure of angle x? a.101 b.158 c.44 d.79