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10 February, 05:01

Write a rule for the nth term of the sequence 15, 19, 23, 27

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  1. 10 February, 05:12
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    aₙ = 4n+11

    Step-by-step explanation:

    the sequence 15, 19, 23, 27

    is AP with the first term 15 and

    the common difference 19-15=23-19=27-23 = 4

    aₙ = a₁ + (n-1) d

    aₙ = 15 + (n-1) * 4 = 15+4n - 4 = 4n+11

    aₙ = 4n+11
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