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Re: fun maths puzzles

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sdfgw is not online. sdfgw
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Joined: 08 Jan 2009
Total Posts: 41681
23 Feb 2013 06:58 PM
1) solve x^2 + 4 = 0 for x

2) solve 4(x - 3) = 2(5 + 2x) for x

3) the curve C has equation xy = 1/2

the tangents to C at the distinct points P(p, 1/(2p)) and Q(q, 1(2q)), where p and q are positive, intersect at T and the normals to C at these points
intersect at N

show that T is the point (2pq/(p+q), 1/(p+q))
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MiseryMine is not online. MiseryMine
Joined: 07 Dec 2012
Total Posts: 330
23 Feb 2013 06:58 PM
50
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luffyman50 is not online. luffyman50
Joined: 20 Feb 2012
Total Posts: 38602
23 Feb 2013 06:59 PM
[ Content Deleted ]
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magiccube1 is not online. magiccube1
Joined: 01 Apr 2011
Total Posts: 695
23 Feb 2013 06:59 PM
So, where is the puzzle?
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playfromscratch is not online. playfromscratch
Joined: 23 Sep 2009
Total Posts: 16478
23 Feb 2013 07:00 PM
OUT! You may not return here.
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sdfgw is not online. sdfgw
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Joined: 08 Jan 2009
Total Posts: 41681
23 Feb 2013 07:02 PM
no guise these are fun
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wilfrerocks867 is not online. wilfrerocks867
Joined: 24 Apr 2011
Total Posts: 4062
23 Feb 2013 07:03 PM
um


purple?
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evilclownthingy is not online. evilclownthingy
Joined: 07 May 2011
Total Posts: 12338
23 Feb 2013 07:03 PM
R u a lama?
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sdfgw is not online. sdfgw
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Joined: 08 Jan 2009
Total Posts: 41681
23 Feb 2013 07:04 PM
THERE ARE THREE DIFFERENT FUN MATHS PUZZLES GUYS
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ventus48539 is not online. ventus48539
Joined: 09 Oct 2011
Total Posts: 115277
23 Feb 2013 07:06 PM
[ Content Deleted ]
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MiseryMine is not online. MiseryMine
Joined: 07 Dec 2012
Total Posts: 330
23 Feb 2013 07:06 PM
so far i'm the only one with the correct answer... that's just sad
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sdfgw is not online. sdfgw
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Joined: 08 Jan 2009
Total Posts: 41681
23 Feb 2013 07:06 PM
you are all philistines
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playfromscratch is not online. playfromscratch
Joined: 23 Sep 2009
Total Posts: 16478
23 Feb 2013 07:09 PM
1) solve x^2 + 4 = 0 for x

No real answers; all numbers to the second power come out positive

2) solve 4x - 12 = 10 + 4x for x

No real answers, 12 =/= 10

The rest I don't know the formulas for.


That'll be seventeen dollars.
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sdfgw is not online. sdfgw
Top 50 Poster
Joined: 08 Jan 2009
Total Posts: 41681
23 Feb 2013 07:10 PM
"The rest I don't know the formulas for.


That'll be seventeen dollars."

nope
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GeckoFPS is not online. GeckoFPS
Joined: 21 Oct 2011
Total Posts: 14723
23 Feb 2013 07:11 PM
>fun
>math

Pick one
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playfromscratch is not online. playfromscratch
Joined: 23 Sep 2009
Total Posts: 16478
23 Feb 2013 07:12 PM
It's either that or I report you to the school for cheating on homework.

And at your grade level, you're losing a lot of money.
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MrThernadier is not online. MrThernadier
Joined: 17 Feb 2013
Total Posts: 236
23 Feb 2013 07:14 PM
1) x is plus or minus 2

the second one i can't be bothered with (yay for no maths woo) and the third looks like calculus ain't nobody got time for that
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MrThernadier is not online. MrThernadier
Joined: 17 Feb 2013
Total Posts: 236
23 Feb 2013 07:15 PM
it's not a difference of squares
hnnngh i'm a spazzy
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MrThernadier is not online. MrThernadier
Joined: 17 Feb 2013
Total Posts: 236
23 Feb 2013 07:16 PM
so wait is x 2i or something then
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laurhublox is not online. laurhublox
Joined: 05 Dec 2009
Total Posts: 957
23 Feb 2013 07:16 PM
Do your own homework, mate.

вєƒσяє уσυ ѕтαят α ωαя, уσυ вєттєя кησω ωнαт уσυ'яє ƒιgнтιηg ƒσя.
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ElectricBlaze is not online. ElectricBlaze
Joined: 18 Jul 2011
Total Posts: 22930
23 Feb 2013 07:17 PM
sdfgw, didn't you quit OT?

http://wiki.roblox.com/index.php/User:ElectricBlaze
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MrThernadier is not online. MrThernadier
Joined: 17 Feb 2013
Total Posts: 236
23 Feb 2013 07:18 PM
it's funny because people telling him to do his own homework can't do these
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NoNoah is not online. NoNoah
Joined: 25 Sep 2008
Total Posts: 20685
23 Feb 2013 07:19 PM
Number 1 doesn't have a solution.
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playfromscratch is not online. playfromscratch
Joined: 23 Sep 2009
Total Posts: 16478
23 Feb 2013 07:20 PM
Thern, the only one you answered was answered wrong.
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MrThernadier is not online. MrThernadier
Joined: 17 Feb 2013
Total Posts: 236
23 Feb 2013 07:21 PM
"Thern, the only one you answered was answered wrong."

i realised that in the next post lol
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