The endpoints of a diameter of a circle are located at (3, -7) and (5, 7). Write the equation of the circle a. (x + 4)² + y² = 25
c. (x - 4)2 + y² = 50
b. (x - 4)2 + y² = 25
d. (x +4)+ y2 = 50

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

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?

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.