Random Insanity Alliance Forum, Mark V

Cactuar Zone => Random lnsanity => Topic started by: Jadyn on June 06, 2008, 03:58:07 pm

Title: A cookie
Post by: Jadyn on June 06, 2008, 03:58:07 pm

3 ( 5^(2x+1) ) = 18 ( 2^(5x-3) )

Solve for x.

Title: A cookie
Post by: KingRanter on June 07, 2008, 07:55:06 am

Fuck you.

Title: A cookie
Post by: Ganon5 on June 07, 2008, 08:13:12 pm

Graph both functions on a graphics calculator
Find intersection
x=7.6850011584

Theres no way I'm working that out properly, I've put that logarithm stuff behind me. Thanks for the cookie though

Title: A cookie
Post by: Transtar on June 09, 2008, 08:55:40 am

Ooooo Math

3 ( 5^(2x+1) ) = 18 ( 2^(5x-3) )
Simplify: 3(5*(5^2x))=18((2^5x)/6)
Again: 5=(2^5x)/(5^2x)
e that sucker 5=(e^(2xlog5))/(e^(5xlog2))
Simplify again: 5=e^(2xlog5-5xlog2)
and again:5=e^(x(2log5-5log2))
bye bye e: ln(5) = x(2log5-5log2)
and we get x = ln(5)/(2*log(5)-5*log(2))

simple right?

Title: A cookie
Post by: MotherAfrica on June 11, 2008, 06:18:34 am

You lost me at 3

Title: A cookie
Post by: Drop Your Pants on June 11, 2008, 08:19:53 am

you lost me at "Ooooo Math"

Title: A cookie
Post by: Jadyn on June 19, 2008, 03:07:12 pm

lol I'll need to look at that again Transtar... o.O

Also, I'm going to be away for a month. Hope nothing important happens!

Title: A cookie
Post by: Machiavelli jr on June 20, 2008, 10:55:30 am

You lost me at cookie.

Title: A cookie
Post by: Electric Mango on June 24, 2008, 09:14:54 pm

x=your mom  

Title: A cookie
Post by: Mathlete on July 04, 2008, 02:48:30 pm

Despite my name.

No.

Title: A cookie
Post by: Lanna on July 04, 2008, 10:22:19 pm

Quote from: Machiavelli jr

You lost me at cookie.

LOL

<3

Title: A cookie
Post by: KingRanter on July 06, 2008, 10:54:44 pm

answer = buy a hooker cause otherwise u aint gettin laid


[this post doesnt make any sense. asking for the answer to a really complicated math question doesnt mean you'll never get laid. just so you know.]

Title: A cookie
Post by: Dark Ninja on July 18, 2008, 02:40:47 pm

Quote from: Machiavelli jr

You lost me at cookie.

hahaha

No math in the summer. AAAAAAAAAAAAHHHHHHHH