Find the 15th term of the arithmetic sequence if a1 = -3 and d = 2

Question

Find the 15th term of the arithmetic sequence if a1 = -3 and d = 2

0

Answers ( No )

    0
    2021-10-14T23:39:44+00:00

    Answer:

    25

    Step-by-step explanation:

    a1 = – 3               Given

    d = 2                   Given

    n = 15                  Given

    Formula

    tn = a1 + (n – 1) * d

    Substitute and solve

    t15 = -3 + (15 – 1) * 2               Calculate what’s in the brackets.

    t15 = -3 + 14*2                        Combne

    t15 = -3 + 28                          Add the two terms

    t15 = 25

Leave an answer

Browse
Browse