If the sin 60° is square root 3 over 2, then the cos ° = (4 points)

30° ; square root 3 over 2
60° ; 1
60° ; square root 2 over 2
30° ; 1 over 2

What is the factored form of the following expressions? d^2 – 13d + 36

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

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?