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7 August, 11:28

Using inductive reasoning, what is the next two numbers in this set?

1,-7,13,-19

I got the numbers 14,-26

is that right?

+1
Answers (2)
  1. 7 August, 12:45
    0
    25 and - 31

    Step-by-step explanation:

    Notice that if all the negatives were positive, you would have the arithmetic sequence 1, 7, 13, 19, on and on, adding 6 every time. So basically we have a geometric and arithmetic sequence combined, with the geometric sequence making it positive, and negative, and the arithmetic sequence adding 6 every time. This means the answer (s) are 25 and - 31.
  2. 7 August, 14:55
    0
    Answer: 25 and - 31

    Step-by-step explanation: Notice that if all the negatives were positive, you'd have the arithmetic sequence one, 7, 13, 19, on and on, adding vi each time. therefore essentially we have a geometrical and arithmetic sequence combined, with the geometric sequence creating it positive, and negative, and also the arithmetic sequence adding vi each time. this suggests the answer (s) are twenty-five and - 31.
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