Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

southrebels2

  • 3 years ago

What is the 9th term of the geometric sequence where a1 = -7 and a6 = -7,168?

  • This Question is Closed
  1. Avva
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    a6 = 168 ?

  2. southrebels2
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what?

  3. Avva
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Sorry I can't understand the given ?!

  4. southrebels2
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what given?

  5. Avva
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    a1 = -7 what else is given to solve this problem ? value of a6 ?

  6. southrebels2
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    a6= -7168

  7. Avva
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so the GS (a, ar , ar^2 ,...) so a = a1 = -7 a6 = \[ar ^{5}\] -7168=-7 * r ^5 r=4 a9 = ar^8 = (-7)(4^8)= -458752

  8. southrebels2
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you!

  9. Avva
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    urw :)

  10. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy