27. What is the sum of the geometric sequence 2, 6, ..., 486? A. 728 C. 6560 B. 2 186 D. 19 682 28. A culture of bacteria doubles its number every 3 hours. If there are 80 bacteria at the beginning, how many bacteria there will be after 15 hours? A. 1,280 C. 5,120 B. 2,560 D. 10,240 29. Find the sum of the infinite geometric sequence 24, 12, 6, 3, ... A. 64 C. 32 B. 48 D.24 30. Find the sum of the infimte geometric sequence 200, 150, 112.5, ... A. 400 C. 800 B. 600 D. 1200 31. Which of the following is a polynomial expression? A. 3- 2x + 3x2 C/6x3 - 2 B. 5x-4- 2x + 8 D. xż - 1 32. When you divide P(x) by x - c, you can easily determine the remainder by evaluating A. P(0) C. PC B. P(x) D. P(g) 33. Given P(x) = 3x3 + 2x2 - X. What is the value of P(2)? A. 20 C. 30 B. 40 D. 50 34. Find the remainder when (5x2 - 2x + 1) is divided by (x + 2). A.5 C. 10 B. 20 D. 25
