A community for students.
Here's the question you clicked on:
 0 viewing
resident2013
 2 years ago
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
resident2013
 2 years ago
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

This Question is Closed

DDCamp
 2 years ago
Best ResponseYou've already chosen the best response.2dw: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.

EffImHighOffSkittles
 2 years ago
Best ResponseYou've already chosen the best response.0Jack seriously I am not a smart person xD stahp

R00nnYBraiNsbiG
 2 years ago
Best ResponseYou've already chosen the best response.0@.Sam. please save time and help

sumi29
 2 years ago
Best ResponseYou've already chosen the best response.1You 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.

AnElephant
 2 years ago
Best ResponseYou've already chosen the best response.0DDCamp gave a really nice method, why am i being tagged?

SnuggieLad
 2 years ago
Best ResponseYou've already chosen the best response.0Please stop tagging me. That was 12 notifications when I logged on JUST from you.
Ask your own question
Sign UpFind more explanations on OpenStudy
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
 Engagement 19 Mad Hatter
 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.