Which of the following trigonometric expressions is equivalent to csc(-112°)? csc(68°) cot(112°) -csc(68°) csc(112°)

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

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?

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?