Five times the sum of a number and 6

Find the value of the cosine for angle a

Acircle has a diameter will endpoints of (-2,8) and (6, 4). what is the center of the circle

33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.