8.) simplify.
cot^2 0 - cot ^2 0 cos ^2 0
a.) tan^2 0
b.) -1
c.) 3
d.) sin ^2 0
e.) cos^2 0

In the figure dhg fhe which statement is true by cpctc

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

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?