5. What are the missing terms in the sequence 4,-8, -1-32, 64, __? a. 16, 128, 256 b.-16, -128, -256 c. 16, -128, 256
6. What is the 7th term of a geometric sequence where the second term is 27 and the common ratio is 3? a. 2187 b. 6561 c. 19,683
7. The geometric mean of two numbers is 24. One of the numbers is 8. What is the other number? a. 9 b. 18 c. 72
8. Which among the following are the two geometric means between 2xy and 16xy? a. 4x2 and by b. 4xy and 8xy c. 4xy and By ΤΙλ.
9. What is the geometric mean between 2 and 112? a. 4 b. 2 c. 1
10. If the first term of a geometric sequence is 10 and has a common ratio of 4, find the sum of the first five terms. a. 3415 b. 3410 c. 3405
11. Find the sum of the infinite geometric series 1 + 1/2 + 1/4+1/8... a. 1 b. 2 c. 3
12. In the geometric sequence 6, 12, 24, ... what is the 7th term? a. 192 b. 348 c. 384
13. What is the sum of the first 8 terms in the geometric sequence whose first term is 3 ,last term is 384 and r = 2 ? a. 755 b. 760 c. 765
14. Given 1/5, 1/5, 1/5, 1/5,.. what is the sum of the first 15 terms? a. 3 b. 9 c. 10
15. The fifth term of the geometric sequence is 3 888 and the second term is 18. Find the common ratio. b.6 a. 5 c. 7​