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

resident2013 Group Title

If a, b and c are positive integers and if a=2b and a^2+b^2=c, which of the following cannot equal to c? a) 5 b)20 c) 50 d) 125 e) 500

  • one year ago
  • one year ago

  • This Question is Closed
  1. DDCamp Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    |dw:1373735734443:dw| c is 5 times a square number. Divide each of the possible answers by 5 and see which one isn't a square number.

    • one year ago
  2. R00nnYBraiNsbiG Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    man really lol

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

    Jack seriously I am not a smart person xD stahp

    • one year ago
  4. R00nnYBraiNsbiG Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    @.Sam. please save time and help

    • one year ago
  5. sumi29 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    You have a relation between two of the three variables, so use it. You will be eliminating one of them in the process. Finally you get a simple expression, as solved above by a member. Try out all the given options and get to the correct answer.

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

    DDCamp gave a really nice method, why am i being tagged?

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

    Please stop tagging me. That was 12 notifications when I logged on JUST from you.

    • one year ago
  8. Jack17 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    im so sorry

    • one year 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.