A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

What are the explicit equation and domain for a geometric sequence with a first term of 4 and a second term of -8? (5 points) an = 4(-2)n - 1; all integers where n ≥ 0 an = 4(-2)n - 1; all integers where n ≥ 1 an = 4(-12)n - 1; all integers where n ≥ 1 an = 4(-12)n - 1; all integers where n ≥ 0

  • This Question is Closed
  1. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    PLEASE SOME ONE HELP

  2. misty1212
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    HI!!

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    hi!

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    do you mind helping me with this

  5. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i believe that the answer is the third one but im not sure

  6. misty1212
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[a,ar,ar^2,ar^3...\] \[4,4\times r=-8\]

  7. misty1212
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    if \[4\times r=-8\] then \[r=\frac{-8}{4}=-2\]

  8. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay

  9. misty1212
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    therefore \[a_n=4\times (-2)^{n-1}\]

  10. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so is it a or b???

  11. misty1212
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    it would be B

  12. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay thank you

  13. misty1212
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    because \(n\geq 1\) is what they want as the domain

  14. misty1212
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\color\magenta\heartsuit\]

  15. 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

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.