Ask Question
22 September, 23:03

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. 23 September, 02:39
    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?
Find 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 you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers