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12 April, 07:45

A44 = 359 (7) 41

Trying to find the 44 in the sequence starting with 359

352

345

+4
Answers (1)
  1. 12 April, 09:16
    0
    The 44th term of this decreasing sequence is 58

    Explanation:

    Let's recall that the formula for finding out any term in an arithmetic sequence is:

    aₙ = a₁ + (n - 1) * d, where n is the number of term we want to find out and d is the common difference between terms.

    But in this case, the list is decreasing, so we have to replace the plus sign by a minus sign, this way:

    aₙ = a₁ - (n - 1) * d

    Replacing with the real values, we have:

    a₄₄ = 359 - (44 - 1) * 7

    a₄₄ = 359 - (43 * 7)

    a₄₄ = 359 - 301 = 58

    The 44th term of this decreasing sequence is 58
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