A sequence has a second term of 1 and a common difference of -3. The fifth term of the sequence is _____. A)-11

Question

A sequence has a second term of 1 and a common difference of -3.

The fifth term of the sequence is _____.

A)-11
B)-8
C)-5
D)10

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Minh Khuê 3 years 2021-08-26T12:59:47+00:00 2 Answers 9 views 0

Answers ( )

  1. Delwyn
    0
    2021-08-26T13:00:54+00:00
    Reply

    The Answer is B

    1-3=-2. Third term
    -2-3=-5. Fourth term
    -5-3=-8. Fifth term

  2. Adela
    0
    2021-08-26T13:01:01+00:00
    Reply

    Answer:

    B

    Step-by-step explanation:

    firstly as we know that,

    nth term of an A.P. is n= a1 + (n-1)d

    here d is -3 so, A1 = 1-(-3) = 4

    so, 5th term = 4 + ( 5-1)( -3) = 4 + 4(-3) = 4 – 12 = -8

    so the answer is -8 which is option B.

    Hope this answer helps. I got a little help from my tutors on Gauthmath app which is really good. you can check it out too. 🙂

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )