Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Eyad Group Title

Geometric sequence of positive terms in which its first term equal 4 times its third term and the sum of its second term ,fifth term is 36 ..Find The G.s .....

  • 2 years ago
  • 2 years ago

  • This Question is Closed
  1. Ceriona Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    so, if the terms are labled \[n _{1}\] for the first term \[n _{_{2}}\] for the second, and so on. Does \[n _{1} = 4n _{3} + n _{2}\] or\[n _{1} = 4(n _{3} + n _{2})\]

    • 2 years ago
  2. Eyad Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    can't we say a=first term where a=4T3 ,a=4(ar^2)----->(1) T2+T5=36 ,ar+ar^4=36 , ar(1+r^3)=36------->(2) and deal with these two equations ?

    • 2 years ago
  3. Ceriona Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ok, that works

    • 2 years ago
  4. Ceriona Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    ok, so this is what I got|dw:1337900631418:dw|

    • 2 years ago
  5. Ceriona Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1337900769253:dw|

    • 2 years ago
  6. Ceriona Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Can you follow what I did, or is my writing a little to hard to read?

    • 2 years ago
  7. Eyad Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    no , i can follow :)

    • 2 years ago
  8. Eyad Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    But how come the first term be fraction ,I think something is going wrong :/

    • 2 years ago
  9. Ceriona Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    The first term isn't a fraction. The first term is "a" which is 64. "r" is the number we're multiplying each term by to get the next.

    • 2 years ago
  10. Eyad Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh,sry i read it wrong ,ty :)

    • 2 years ago
  11. Ceriona Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    So first term is 64, second is 32, third is 16, fourth is 8, fifth is 4 ..... 4 * 16 = 64 (first term equal to 4 times third term) and 32 + 4 = 36 (second term plus fifth term equals 36). It fits both of the original equations.

    • 2 years ago
  12. Eyad Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Ty

    • 2 years ago
    • Attachments:

See more questions >>>

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.