II. TRUE or FALSE: Write true if the statement is correct and false if is not. Write the correct answer on your answer sheet.
11. The sum of the first n terms of an arithmetic sequence is denoted by Sn.
12. The 27th term of the arithmetic sequence 5, 8, 11, 14,... is 82.
13. The three arithmetic means between 6 and 54 are 18, 30, 42.
14. The sequence 2x, 4x2,8x4,... is NOT a geometric sequence.
15. The sequence 40, 20, 10, 5, ... is geometric.
11. The sum of the first n terms of an arithmetic sequence is denoted by Sn.
12. The 27th term of the arithmetic sequence 5, 8, 11, 14,... is 82.
13. The three arithmetic means between 6 and 54 are 18, 30, 42.
14. The sequence 2x, 4x2,8x4,... is NOT a geometric sequence.
15. The sequence 40, 20, 10, 5, ... is geometric.
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Answer:
True
False 83
True
True
True
Step-by-step explanation:
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16. The next term of the sequence 18, 6, 2... is 3/4
17. The common ratio of the sequence 5, 35, 245... is 5
18. The sequence 4, 8, 16, 32, is geometric sequence
19. The sequence 9, 1, -7, -15, -23, is an arithmetic.
20. If the terms of a sequence differ by constant, we say that sa sequence is arithmetic.
Answer:
11: False
12: True
13: True
14: True
15: False
Step-by-step explanation:
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