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LOL please help with simple math

Blogs > Raithed
Post a Reply
Raithed
Profile Blog Joined May 2007
China7078 Posts
May 05 2008 03:48 GMT
#1
My brain got fucking numb, as I forgot how to do this. :[

EXCUSE MY NOOBNESS.

Ap = Av + 10 log ( Rin / Rout )
72 = 52 + 10 log ( 50,000 / Rout )
20 + 10 log ( 50,000 / Rout )
2 log ( 50,000 / Rout)

Rout = ?

I cannot solve for Rout, someone teach me?

***
Hippopotamus
Profile Blog Joined October 2004
1914 Posts
Last Edited: 2008-05-05 03:53:00
May 05 2008 03:52 GMT
#2
2 = log(50,000/Rout)
2 = log(50,000) - log(Rout) ??
10^(2-log(50,000) = Rout?
Raithed
Profile Blog Joined May 2007
China7078 Posts
May 05 2008 03:53 GMT
#3
Hippo, I don't get you, what?

The answer for Rout is 500 btw.
patrick321
Profile Joined August 2004
United States185 Posts
May 05 2008 04:04 GMT
#4
2 = log(50,000/Rout)
2 = log(50,000) - log(Rout) ??
10^(2-log(50,000) = (-1)Rout?


10^(-2+log(50,000) = Rout = 500
Meta
Profile Blog Joined June 2003
United States6225 Posts
May 05 2008 04:04 GMT
#5
10^log(anything) = anything

so raise both sides of the equation as powers of ten
good vibes only
Raithed
Profile Blog Joined May 2007
China7078 Posts
May 05 2008 04:22 GMT
#6
Thank you~
L
Profile Blog Joined January 2008
Canada4732 Posts
Last Edited: 2008-05-05 05:15:02
May 05 2008 05:14 GMT
#7
2=Log(50000/R)

10^2= 50000/R

R= 50000/100

R= 500.
The number you have dialed is out of porkchops.
micronesia
Profile Blog Joined July 2006
United States24761 Posts
Last Edited: 2008-05-05 05:26:25
May 05 2008 05:25 GMT
#8
I need help also.

5 = (4*((34)^2))/(sqrt( 1 - ((24)^2)/((34)^2))) ???
ModeratorThere are animal crackers for people and there are people crackers for animals.
bahhh
Profile Joined May 2007
United States888 Posts
May 05 2008 08:48 GMT
#9
how is this in any fuckign way simple .....
i expected like x + 2 = 4 , find x
jgad
Profile Blog Joined March 2008
Canada899 Posts
May 05 2008 10:11 GMT
#10
On May 05 2008 14:25 micronesia wrote:
I need help also.

5 = (4*((34)^2))/(sqrt( 1 - ((24)^2)/((34)^2))) ???



The answer is "False"
콩까지마
PGS.Marine
Profile Blog Joined April 2007
Poland303 Posts
May 05 2008 10:32 GMT
#11
On May 05 2008 17:48 bahhh wrote:
how is this in any fuckign way simple .....
i expected like x + 2 = 4 , find x


got it
ahaha
Doh Jae Wook!~~ // http://img360.imageshack.us/img360/1808/elaczekpa1.jpg
micronesia
Profile Blog Joined July 2006
United States24761 Posts
May 05 2008 12:14 GMT
#12
On May 05 2008 17:48 bahhh wrote:
how is this in any fuckign way simple .....
i expected like x + 2 = 4 , find x

Simple is in the eye of the beholder.
ModeratorThere are animal crackers for people and there are people crackers for animals.
Wonders
Profile Blog Joined September 2006
Australia753 Posts
May 05 2008 13:35 GMT
#13
72 = 52 + 10 log ( 50,000 / Rout )
20 = 10 log ( 50,000 / Rout )
log ( 50,000 / Rout ) = 2
50,000 / Rout = exp(2)
rout = 50000/exp(2)
aqui
Profile Blog Joined January 2008
Germany1023 Posts
Last Edited: 2008-05-05 13:54:51
May 05 2008 13:54 GMT
#14
On May 05 2008 14:25 micronesia wrote:
I need help also.

5 = (4*((34)^2))/(sqrt( 1 - ((24)^2)/((34)^2))) ???



(4*((34)^2))/(sqrt( 1 - ((24)^2)/((34)^2)))=
(4*((34)^2))/ sqrt((34^2-24^2)/34^2)=(4*((34)^2))/ sqrt((34-24)*(34+24)/34^2)
=(4*((34)^2))/(sqrt(580)/34^2)=(4*((34)^3))/sqrt(580)=no way 5
Bub
Profile Blog Joined June 2006
United States3518 Posts
May 05 2008 14:53 GMT
#15
I'm with baal there.
XK ßubonic
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