A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

HELP PRECALC MEDALS 1.) Find an equation for the nth term of the arithmetic sequence. a14 = -33, a15 = 9 an = -579 + 42(n + 1) an = -579 + 42(n - 1) an = -579 - 42(n + 1) an = -579 - 42(n - 1) 2. Find an equation for the nth term of the arithmetic sequence. -15, -6, 3, 12, ... an = -15 + 9(n + 1) an = -15 x 9(n - 1) an = -15 + 9(n + 2) an = -15 + 9(n - 1) 3. Find an equation for the nth term of the sequence. -3, -12, -48, -192, an = 4 -3n + 1 an = -3 4n - 1 an = -3 4n an = 4 -3n

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

    Kindly separate these questions or tell us what you believe the answer is

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

    (Note: given two point. That can be an exponential function - geometric sequence, or a linear function - arithmetic sequence. However, I conclude from the answer choices that this #1 is arithm. sequence.)

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

    \(\large\color{black}{ \displaystyle a_{14}=-33 }\), \(\large\color{black}{ \displaystyle a_{15}=9 }\) since we are talking about a geometric sequence \(\large\color{black}{ \displaystyle {\rm d}=a_{15}-a_{14}=9-(-33)=? }\)

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

    because in geometric sequence, d, the common difference between the terms is `(a term) - (a term before it)` so, \(\large\color{black}{ \displaystyle {\rm d}=a_{n-1}-a_{n}={\small(\rm in~this~case)}~~a_{15}-a_{14}=9-(-33)=? }\)

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

    @SolomonZelman an = -579 + 42(n - 1) (?)

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

    @SolomonZelman

  7. 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.