When asked to factor the x^2 - 144, a student gives the answer (x - 12)(x - 12). What is the wrong with this answer? A. -1 is also a factor B. One of the minus signs should be a plus sign C. Both minus signs should be plus signs D. There is nothing wrong with the answer

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.

Find the dimensions of the circle. area = 64π in.² r= in.