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Anyone Online Now Read This!!!!!

Postby USSRGirl » Tue May 01, 2007 8:37 pm

I urgently need help solving this Algebra 2 problem:

For the real valued functions g(x) = |x| - 4 and h(x) = sqrt(-2 - x) find the composition of g o h and specify the domain in interval notation.

If you solve it for me, I'll give you stock in Free Temuoplis Corp.
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Postby Fish and Chips » Tue May 01, 2007 8:41 pm

Simple. The answer is to betray your comrades. ;)

Glad to be of assistance.
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Postby USSRGirl » Tue May 01, 2007 8:44 pm

>.>;; I have no idea what you're talking about. Get this rambling idiot out of here, he's scaring the children.
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Postby Dante » Tue May 01, 2007 10:38 pm

http://mathworld.wolfram.com/Domain.html

first off, the above, second off, smack your math teacher around and tell the lousy moron to use english and stop trying to impress his students with his knowledge of learned jargon. He really isn't proving anything except that he's a lousy human being to a bunch of kids.

Now, using the most common description (I never use this archaic notation, so really I just decided to look this stuff up on the fly)That of the set of values over which our functiosn are defined. The composition of g^o h is g(f(x)) via,
http://mathworld.wolfram.com/Composition.html

And thus, the domain of g(f(x)) is the set of values over which g(f(x)) is defined? Make sense? I doubt it, but let's continue,

EQN 1; g(x) = |x| - 4
EQN 2; h(x) = sqrt(-2 - x)

EQN 1 -> EQN 2 -> EQN3; g(h(x))=|h(x)|-4
Or, plugging in the direct equation
EQN 3; g(h(x))=|sqrt(-2 - x)|-4
Which becomes,
EQN 3 -> g(h(x))=+sqrt(-2-x)-4

As we are only conserned with the real values, the sqare root cannot have any negative values inside, and as a result,

EQN 4; -2-x=>0
Or,
EQN 4; x<=-2

This last part being the solution, or,

x is less then or equal to negative two in order for g(h(x)) to be real.
FKA Pascal
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Postby Fish and Chips » Tue May 01, 2007 10:42 pm

Ah, the value of flunkies.
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Postby Dante » Tue May 01, 2007 10:51 pm

Pascal: Do not consider me to be foolish here F&C, I'm taking an objective investigation of both sides, if you truly knew my history, you would realize that the last time Temulin TRULY attempted to take over the world with me involved, I was fighting against her... but then again, you would have no idea what this would mean,

Image

But one should never shy away from helping another if one can, otherwise, what use are you? After all, I'm helping someone out, that's better then you resistance members can claim!
FKA Pascal
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Postby Fish and Chips » Tue May 01, 2007 10:55 pm

Pascal wrote:But one should never shy away from helping another if one can, otherwise, what use are you? After all, I'm helping someone out, that's better then you resistance members can claim!

Don't make accusations you can't follow up on, Pascal. You have no idea what I do and don't do.
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Postby USSRGirl » Wed May 02, 2007 10:04 am

Thank you greatly Pascal (even if you WERE too late to solve it). But..... ITOLDYOUNEVERTOSHOWMETHATPICTUREAGAIN!!!!!!!!!!!!!!!!!


Oh btw, my teacher is currently a demon possessed computer program run by a kind little old lady somewhere in a highschool.
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Postby Dante » Wed May 02, 2007 10:50 am

I don't see any answers here for USSR girl from you.
FKA Pascal
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Postby Fish and Chips » Wed May 02, 2007 4:25 pm

Pascal wrote:I don't see any answers here for USSR girl from you.

Your right. I didn't do her math homework for her, therefore I am an evil, corrupt individual. Oh, the humanity. How ever did you figure me out? I am now doomed to rot, and stew, in a pit, of my guilt, and worthlessness.

Please.
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Postby IantheGecko » Fri Jul 27, 2007 10:39 pm

Chill the crap out, guys.
"Make a joyful noise to the LORD, all the Earth"
AAAAAAAAAAAAAAAAAAAAAHHHHHHHHH!
BLALALALALALALALALALALA-WOOOOOOOOOOO!!!!
BANG!
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Postby Mithrandir » Fri Jul 27, 2007 10:48 pm

Great...


Ignite the fires again after over two months. That's probably not the most effective strategy one could come up with.
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