18. Which of the following is an infinite geometric sequence? A. 1, 3, 5, 7 ...
C. 3, 6, 18, 54 ...
B. 2,4,6,8...
D. 4, 8, 16, 32 ...
19. Write the first four terms of a geometric sequence if the first term is 8 and the common ratio is 2.
A. 8, 10, 12, 14
C. 8, 16, 32, 64
B. 8, 16, 24, 32
D. 8, 4, 2, 1
20. What is the 6th term of the geometric sequence 4, 12, 36 ...?
A. 8748
C. 972
B. 2916
D. 324
21. Find the gth term of a geometric sequence whose 1st term is 7 and the common ratio is 3.
A. 5 103
C. 45 927
B. 15 309
D. 137 781
_22. What is the tenth term of a geometric sequence with 32 as the fourth term and 2 as the common ratio?
A 512
C. 2048
B. 1024
D. 4096
-23. What is the geometric mean between 7 and 63?
A. 21
C. 35
B. 28
D. 42
24. Insert 3 geometric means between 3 and 243.
A. 9, 27,81
C. 6, 12, 24
B. 27, 54, 108
D. 12, 36, 108
25. The sum of the terms of a geometric sequence is called__.
A. arithmetic series
C. geometric means
B. cominon ratio
D. geometric series
26. Find the sum of the first 10 terms of a geometric sequence with the first term, 10, and common ratio. 5.
A. 976 56O
B. 4 882 810
C.24 414 060
D.122 070 310
C. 3, 6, 18, 54 ...
B. 2,4,6,8...
D. 4, 8, 16, 32 ...
19. Write the first four terms of a geometric sequence if the first term is 8 and the common ratio is 2.
A. 8, 10, 12, 14
C. 8, 16, 32, 64
B. 8, 16, 24, 32
D. 8, 4, 2, 1
20. What is the 6th term of the geometric sequence 4, 12, 36 ...?
A. 8748
C. 972
B. 2916
D. 324
21. Find the gth term of a geometric sequence whose 1st term is 7 and the common ratio is 3.
A. 5 103
C. 45 927
B. 15 309
D. 137 781
_22. What is the tenth term of a geometric sequence with 32 as the fourth term and 2 as the common ratio?
A 512
C. 2048
B. 1024
D. 4096
-23. What is the geometric mean between 7 and 63?
A. 21
C. 35
B. 28
D. 42
24. Insert 3 geometric means between 3 and 243.
A. 9, 27,81
C. 6, 12, 24
B. 27, 54, 108
D. 12, 36, 108
25. The sum of the terms of a geometric sequence is called__.
A. arithmetic series
C. geometric means
B. cominon ratio
D. geometric series
26. Find the sum of the first 10 terms of a geometric sequence with the first term, 10, and common ratio. 5.
A. 976 56O
B. 4 882 810
C.24 414 060
D.122 070 310
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