If the sin 60° is square root 3 over 2 , then the cos ° = . (4 points) a 30° ; 1 over 2 b 60° ; square root 2 over 2 c 30° ; square root 3 over 2 d 60° ; 1

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.

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?

Your friend, taylor, missed class today and needs some identifying solutions to systems. explain to taylor how to find the solution(s) of any system using its graph.