The third term in a sequence is 25. The fifth term is 225. What are the possible values of the 4th term of the sequence if it is arithmetic?

Question

The third term in a sequence is 25. The fifth term is 225. What are the possible values of the 4th term of the sequence if it is arithmetic? If it is geometric?

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Vân Khánh 5 years 2021-09-03T05:14:09+00:00 1 Answers 28 views 0

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  1. Nick
    0
    2021-09-03T05:16:04+00:00
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    Answer:

    if it is arithmetic, ach item us increase linearly. The general term is – 175+100(n-1)

    where n is the number of term.

    the 4th term is 125

    if it is geometic, each item us increased exponetially. T he general term is 25/9 x 3^(n-1)

    where n is the number of term

    the 4th term is 75

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