Ask Question
12 February, 18:00

Write the explicit formula for the geometric sequence. Then find the fifth term in the sequence.

a1 = - 4, a2 = 8, a3 = - 16

+4
Answers (1)
  1. 12 February, 20:58
    0
    The sequence: a 1 = - 4, a 2 = 8, a 3 = - 16, ...

    a 2 = a 1 * r

    8 = - 4 * r

    r = 8 : ( - 4)

    r = - 2

    a n = a 1 * r^ (n-1)

    a 5 = - 4 * ( - 2) ^4 = - 4 * 16 = - 64

    Answer:

    The fifth term in the sequence is - 64.
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Write the explicit formula for the geometric sequence. Then find the fifth term in the sequence. a1 = - 4, a2 = 8, a3 = - 16 ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers