Atraffic signal 3.95m high casts a shadow across the road. if the angle of elevation of the sun is 24.8 degrees, find the length of the shadow, correct to two decimal places.

What is the length of the unknown leg in the right triangle ?

It says factor each expression completely 8y+48

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?