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Chockeh wrote on 2010-05-04 00:56
Quote from EndlessDreams;27492:
Setup one of those trig things, and then substitute.
Like Sin 27 = (a/c)
Use the given equation, rearrange it around, then solve for a. After you get a, just solve for c, and then use trig to solve for b.
If my method is wrong, and you got points off, too bad, lol.
I don`t get points for this, it`s just revision xD.
Yeah that`s kind of the right thing to do *Just looked quick*
It`s just that I don`t know how long is a and c
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Kyouria wrote on 2010-05-04 00:57
Have you learned the laws of Sines yet?
I just find it odd how they gave you a+c=2908 instead of giving you one length of a side.. (i.e. a=___ then using law of Sines would solve all a, c, and b).
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Chockeh wrote on 2010-05-04 01:01
Quote from Yumi;27505:
Have you learned the laws of Sines yet?
I just find it odd how they gave you a+c=2908 instead of giving you one length of a side.. (i.e. a=___ then using law of Sines would solve all a, c, and b).
Yeah I have, I said this was for exam xD.
They did that so I can think more or something. If they gave me a side, it would be so easy.
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Laconicus wrote on 2010-05-04 01:04
Wow... I'm in college math classes and I still don't understand sin etc., but that's taught in 10th grade in Canada? xD
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Chockeh wrote on 2010-05-04 01:05
Quote from Laconicus;27527:
Wow... I'm in college math classes and I still don't understand sin etc., but that's taught in 10th grade in Canada? xD
Secondary 4 ._.
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abc33kr wrote on 2010-05-04 01:23
b= square root of ( (2908/(sin27degree +1))^2 - (2908 - 2908/(sin27degree +1))^2 )
erm do i have to give me work on this?
*i actually thought this was a troll post when i read the title xD
if its not, someone help me with APUSH studying and tell me what lowell factory in massachusetts did xDDD
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RicochetOrange wrote on 2010-05-04 01:24
@_@
Confused already. I'm horrible at math.
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Kyouria wrote on 2010-05-04 01:26
[FONT="Arial"]I messed around with the law of Sines and I think I got the answer:
[Image: http://i41.tinypic.com/11qjy4j.jpg]
Excuse the messy handwriting > <; and don't get mad if you get it wrong. Since the answers are all over the place: a=908, b=1782, and c=2000.
@_@[/FONT]
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Lonesky wrote on 2010-05-04 01:26
@abc33kr, didn't they start the factory system at the lowell fact in Mass? *goes through 8th grade history notes*
edit: Yes, at the Lowell factory in Mass. they started the "factory system" which was bringing all the manufacturing steps under one roof to increase effeciency
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EndlessDreams wrote on 2010-05-04 01:34
Quote from Laconicus;27527:
Wow... I'm in college math classes and I still don't understand sin etc., but that's taught in 10th grade in Canada? xD
I think you are just seriously behind.
I remember that being taught in Jr. High in the US...
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abc33kr wrote on 2010-05-04 01:35
Quote from Yumi;27585:
[FONT="Arial"]I messed around with the law of Sines and I think I got the answer:
[Image: http://i41.tinypic.com/11qjy4j.jpg]
Excuse the messy handwriting > <; and don't get mad if you get it wrong. Since the answers are all over the place: a=908, b=1782, and c=2000.
@_@[/FONT]
aww i was wrong on my answer? xD
*edit actually nvm, my answer is same as yours when simplified. i got 1782.0246919109222462380668432513
Quote from Lonesky;27588:
@abc33kr, didn't they start the factory system at the lowell fact in Mass? *goes through 8th grade history notes*
edit: Yes, at the Lowell factory in Mass. they started the "factory system" which was bringing all the manufacturing steps under one roof to increase effeciency
oh thanks :D
so two things i know about lowell factory
1. worked by women and children. then prior civil war, irish immigrants took over
2. brings all the manufacturing steps under one roof to increase efficiency
xD we should have a section in the forum just for homeworks so that way we won't fail in life and still enjoy mabi :D
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Chockeh wrote on 2010-05-04 01:45
Thx Yumi, just trying to calculate now ;D.
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Kyouria wrote on 2010-05-04 01:54
No problem!
[Image: http://i613.photobucket.com/albums/tt215/OneSky/Kaoani/kao_regular.gif]
Quote from abc33kr;27606:
*edit actually nvm, my answer is same as yours when simplified. i got 1782.0246919109222462380668432513
Nice xD *Hi5*
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Chockeh wrote on 2010-05-04 02:05
Quote from Yumi;27628:
No problem! [Image: http://i613.photobucket.com/albums/tt215/OneSky/Kaoani/kao_regular.gif]
Nice xD *Hi5*
But in the end shouldn't it be b^2 = c^2 - a^2
then b = 1782?
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Kyouria wrote on 2010-05-04 02:08
Quote from Chocklitshop;27636:
But in the end shouldn't it be b^2 = c^2 - a^2
then b = 1782?
Both our answers were b=1782. o.o
And if my memory serves correctly, I thought it was a^2+b^2=c^2
or side^2+other side^2=hypotenuse^2
EDIT: It's the same, except you rearranged the equation. xD [SIZE="1"]Subtracted a^2 from both sides[/SIZE]