What is the common ratio of the given sequence

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Reference no: EM131511457

Assignment

1. Which of the following represents an arithmetic sequence?

A. 5, -10, 20, -40
B. 3, 1, 4, 2
C. 2, 4, 8, 16
D. 3, 5, 7, 9,

2. Find the common difference for the arithmetic sequence 2.3, 5.9, 9.5, 13.1, 16.7.

A. d = 2.3
B. d = 3.6
C. d = 2.6
D. d = 1.6

3. If the second term of an arithmetic sequence is 10 and the seventh term is 35, find the 11th term.

A. 55
B. 50
C. 45
D. 60

4. Given an arithmetic sequence with a₇ = 19 and a₁₂ = 54, find a₁₅.

A. 61
B. 68
C. 75
D. 82

5. Which of the following is a geometric sequence?

A. 3, 11, 19, 27, 35 ...
B. 2, 4, 8, 16, 32 ...
C. 4, 8, 12, 16, 20 ...
D. 100, 81, 64, 49, 36 ...

6. What is the common ratio of the following sequence?
9, -27, 81, -243

A. -1
B. -2
C. -3
D. -4

7. What is the common ratio of the following sequence?
8, 64, 512, 4096

A. 7
B. 8
C. 9
D. 10

8. What are the next three terms of the sequence 1, -3, 9, -27,...?

A. -54. 162, -486
B. -81, 243, -729
C. 81, -243, 729
D. 57, -162, 486

9. The fifth term of a geometric sequence is 112 and the ninth term is 1,792. Find the common ratio of the sequence.

A. 2
B. 4
C. 8
D. 16

10. Find the 7th term of a geometric sequence with t1 = 6 and r = 4.

A. 24,576
B. 30,156
C. 93,546
D. 147,456

11. Find the 15th term of the sequence: -3, 6, -12, 24 . . . .

A. 123
B. -49,152
C. -123
D. 49,152

12. Find the four arithmetic means between 3 and 28.

A. 7, 12, 17, 22
B. 8, 14, 18, 24
C. 9, 14, 19, 24
D. 8, 13, 18, 23

13. Find the four arithmetic means between 12 and -13.

A. 6, -1, -3, -8
B. 6, 2, -3, -8
C. 7, -1, -3, -8
D. 7, 2, -3, -8

14. Find two geometric means between 5 and 135.

A. 12, 42
B. 13, 43
C. 14, 44
D. 15, 45

15. Find three geometric means between 2 and 162.

A. 42, 82, 122
B. 6, 18, 54
C. 22.25, 40.5, 60.75
D. 6, 18, 36.

Reference no: EM131511457

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