Find all School-related info fast with the new School-Specific MBA Forum

It is currently 16 Apr 2014, 08:22

Hurry Up:

Last day of registration for Dealing with a Ding - Webinar by GMATClub and Admissionado Consulting.


Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

In the xy-plane, point (r, s) lies on a circle with center

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
VP
VP
Joined: 26 Apr 2004
Posts: 1226
Location: Taiwan
Followers: 2

Kudos [?]: 28 [0], given: 0

GMAT Tests User
In the xy-plane, point (r, s) lies on a circle with center [#permalink] New post 16 Aug 2004, 20:29
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
In the xy-plane, point (r, s) lies on a circle with center at the origin. What is the value of r2 + s2 ?

(1) The circle has radius 2.
(2) The point (v2, -v2) lies on the circle.

please explain, thank you
Senior Manager
Senior Manager
Joined: 25 Jul 2004
Posts: 274
Followers: 1

Kudos [?]: 4 [0], given: 0

GMAT Tests User
 [#permalink] New post 16 Aug 2004, 21:29
is this r^2 + s^2?

If so I would Say A.

If not I would Say E.
VP
VP
Joined: 26 Apr 2004
Posts: 1226
Location: Taiwan
Followers: 2

Kudos [?]: 28 [0], given: 0

GMAT Tests User
 [#permalink] New post 17 Aug 2004, 07:13
Yes, indeed , r^2 + s^2,

thank you
CEO
CEO
Joined: 15 Aug 2003
Posts: 3470
Followers: 57

Kudos [?]: 649 [0], given: 781

 [#permalink] New post 17 Aug 2004, 22:15
can anyone explain this to the author please?

thanks
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 07 Jul 2004
Posts: 5099
Location: Singapore
Followers: 15

Kudos [?]: 120 [0], given: 0

GMAT Tests User
 [#permalink] New post 17 Aug 2004, 23:54
If (r,s) lies on the circle, then if we are told the radius, we can find out r^2 + s^2 using pythagoras theorem

(1) If radius is 2, then r^2+s^2 = 4. So (1) is sufficient

(2) is not sufficient, as we do not have a radius to equate and no other information pertaining to v2 and -v2 is given

So (A) is the answer
  [#permalink] 17 Aug 2004, 23:54
    Similar topics Author Replies Last post
Similar
Topics:
Popular new posts In the xy-plane, point (r, s) lies on a circle with center positive_energy 13 01 Aug 2006, 10:58
New posts In the xy-plane, point (r,s) lies on a circle with center at alohagirl 3 03 Nov 2007, 06:44
New posts In the xy-plane, point (r, s) lies on a circle with center vivektripathi 2 24 Sep 2008, 07:19
New posts 1 In the xy-plane, point (r,s) lies on a circle with center at jpr200012 4 24 Aug 2010, 21:45
New posts 1 Experts publish their posts in the topic In the xy-plane, point (r, s) lies on a circle with center udaymathapati 1 09 Dec 2010, 09:31
Display posts from previous: Sort by

In the xy-plane, point (r, s) lies on a circle with center

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.