Quantcast Mathcounts Marathon - XP Math - Forums
XP Math Home Sign Up FREE! | Sign In | Classroom Setup | Common Core Alignment PDF Version

Go Back   XP Math - Forums > Mathematics > Homework Help

Reply
 
Thread Tools Display Modes
Old 06-22-2007   #1
Sillysidley

Last Achievements
 
Join Date: Oct 2006
Posts: 822
Default Mathcounts Marathon

Hows about we start having a problem marathon? Someone posts a problem, and another person answers. Whoever answers needs to post a new one. Don't let the problems go to trig or proofs, or anything harder than middle school. I'll start.

What's the area of a right triangle with sides 3,4, and 5?

Edit: You can only post A new problem after your answer is verified as correct by the poster.
__________________
.

Last edited by Scion; 08-23-2007 at 08:55 PM.. Reason: new rule
Sillysidley is offline   Reply With Quote
Old 06-22-2007   #2
Scion

Last Achievements
 
Join Date: Nov 2006
Posts: 446
Default

the answer is 6

solve
__________________
Scion is offline   Reply With Quote
Old 06-22-2007   #3
Sillysidley

Last Achievements
 
Join Date: Oct 2006
Posts: 822
Default

Quadratic Formula gives

Find the discriminant of the quadratic equation .
__________________
.

Last edited by Sillysidley; 06-22-2007 at 04:44 PM..
Sillysidley is offline   Reply With Quote
Old 06-22-2007   #4
Scion

Last Achievements
 
Join Date: Nov 2006
Posts: 446
Default

u mean discriminant right?
__________________
Scion is offline   Reply With Quote
Old 06-22-2007   #5
Sillysidley

Last Achievements
 
Join Date: Oct 2006
Posts: 822
Default

Whoops, yeah. I had to hurry up, since my parents were calling me.
__________________
.
Sillysidley is offline   Reply With Quote
Old 06-22-2007   #6
Scion

Last Achievements
 
Join Date: Nov 2006
Posts: 446
Default

answer is 6 again lolz
find the area of circle with radius of 5.
__________________
Scion is offline   Reply With Quote
Old 06-22-2007   #7
Sillysidley

Last Achievements
 
Join Date: Oct 2006
Posts: 822
Default

Incorrect.
__________________
.
Sillysidley is offline   Reply With Quote
Old 06-22-2007   #8
Scion

Last Achievements
 
Join Date: Nov 2006
Posts: 446
Default

36?
__________________
Scion is offline   Reply With Quote
Old 06-22-2007   #9
Sillysidley

Last Achievements
 
Join Date: Oct 2006
Posts: 822
Default

Yes, it's just supposed to be not

For your question, it's

Let someone else answer this, it's easy: What's the probability of drawing a yellow coin out of a bag with 4 yellow coins and 5 blue coins?
__________________
.
Sillysidley is offline   Reply With Quote
Old 06-22-2007   #10
Temperal
Guest
 
Posts: n/a
Default



What is ?
  Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 01:09 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2017, vBulletin Solutions Inc.
XP Math