Which percent change represents a percent increase? A. Original amount = 978 New amount = 118 Percent change = 87% B. Original amount =574 New amount = 678 Percent change = 18% C. Original amount = 1,055 New amount = 1,000 Percent change = 5% D. Original amount = 1,254 New amount= 1,045 Percent change = 17%

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?

Which is the graph of this function 3 square root of x plus one if

Use the ratio test to determine whether ∑n=14∞n+2n! converges or diverges. (a) find the ratio of successive terms. write your answer as a fully simplified fraction. for n≥14, limn→∞∣∣∣an+1an∣∣∣=limn→∞.