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Generally Speaking => Power On => Topic started by: Silverhawk79 on September 27, 2007, 01:37:41 PM

Title: A little pre-calc help.
Post by: Silverhawk79 on September 27, 2007, 01:37:41 PM
Okay, so I'm almost finished with mah take-home test.
But...this problem's either too hard, or I'm just not caring about math.
Either way, halp.
(x-5)/([x/5]-[5/x])

If you can't understand that, the denominator is x/5 - 5/x, and the top is x-5.
Title: Re: A little pre-calc help.
Post by: Nintendo Guru on September 27, 2007, 01:51:44 PM
What are you trying to find? ( I think I actually know how to do this problem. :P)

Ok, so you were just simplifying it?  Okay, I guess that makes sense for Pre-Calculus work.
Title: Re: A little pre-calc help.
Post by: Silverhawk79 on September 27, 2007, 01:53:27 PM
Nevermind, I got it. :P
Title: Re: A little pre-calc help.
Post by: blue_slime on September 27, 2007, 01:53:49 PM
uhh... work x/5-5/x into one fraction, factor that numerator, then you should be able to simplify the entire fraction.
Title: Re: A little pre-calc help.
Post by: DIMENTIO1 on September 27, 2007, 01:57:07 PM
wait! dont go D: i need help too!:

1+1=?

D: *scratches head* hmmm...
Title: Re: A little pre-calc help.
Post by: Nintendo Guru on September 27, 2007, 01:58:36 PM
I got  5x/(x+5) as the answer, so if you didn't get that, then you might want to check your work.  ;)  Otherwise, good work.  :P
Title: Re: A little pre-calc help.
Post by: Shujinco2 on September 27, 2007, 02:15:30 PM
Quote from: DIMENTIO1 on September 27, 2007, 01:57:07 PM
wait! dont go D: i need help too!:

1+1=?

D: *scratches head* hmmm...
It's 11 nub! :P :D
Title: Re: A little pre-calc help.
Post by: DIMENTIO1 on September 27, 2007, 02:17:14 PM
Quote from: Shujinco on September 27, 2007, 02:15:30 PM
Quote from: DIMENTIO1 on September 27, 2007, 01:57:07 PM
wait! dont go D: i need help too!:

1+1=?

D: *scratches head* hmmm...
It's 11 nub! :P :D
hmm i thought it was "fish" XD jk/sarcasm
Title: Re: A little pre-calc help.
Post by: Shujinco2 on September 27, 2007, 03:42:57 PM
Quote from: DIMENTIO1 on September 27, 2007, 02:17:14 PM
Quote from: Shujinco on September 27, 2007, 02:15:30 PM
Quote from: DIMENTIO1 on September 27, 2007, 01:57:07 PM
wait! dont go D: i need help too!:

1+1=?

D: *scratches head* hmmm...
It's 11 nub! :P :D
hmm i thought it was "fish" XD jk/sarcasm
LOLOLOLOLOL.

Man, your O0
Title: Re: A little pre-calc help.
Post by: Rayquarian on September 27, 2007, 03:48:24 PM
Pre-calc?  I assume you're in 11th grade?  I go be taking pre-calc this year, if my school wasn't set up to make me take it next year.  That, and my school's set up for me to take Geometry and Algerba II this year.  I took Algerba II last year, though.