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Author For all you maths boys
Ojc
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7th Nov 05 at 13:51   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by ed
quote:
Originally posted by Ojc
Ahhh, equations I hate equations. So pointless when exactly do you ever need to use them?
All the time.


Ok smart arse, if your an engineer or anal intruder like yourself and need to work out the angle to which you need to enter your boyfriends anus to avoid spillage of anal juice then yes, you will need it.
JessKate
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7th Nov 05 at 13:56   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by loo_goblin
now if any of u r really up for a challenge

A vertical tower 0A casts a shadow 0B on level ground when the sum is elevated above the horizon at an angle @=15'. Then @=6' the shadow is at 0C, where 0C is longer by 19m than 0B. Find the heinght h of tower and lenghts of 0B and 0C (You may assume that points 0,A,B,C all lie in one vertical plane. Hint first draw a diagram.

i dont have a clue, i am confusing myself drawing the diagram



u mean sun dont ya?!
loo_goblin
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7th Nov 05 at 13:58   View User's Profile U2U Member Reply With Quote
no, they just make us do a maths unit for enviromental earth science

i used to be quite good at maths, just havnt done it in a long time
loo_goblin
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7th Nov 05 at 14:06   View User's Profile U2U Member Reply With Quote
jess yes i do
JessKate
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7th Nov 05 at 14:12   View User's Profile U2U Member Reply With Quote
Iv been tryin 4 ages and that question is stupidly hard, and i do maths at university! Lol sorry!
Ian
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7th Nov 05 at 18:04   View Garage View User's Profile U2U Member Reply With Quote
Ian
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7th Nov 05 at 18:07   View Garage View User's Profile U2U Member Reply With Quote
Thats the diagram.

tower height = tan(15) x adj = tan(6) x (adj+19)

Just rewrite that.

[Edited on 07-11-2005 by Ian]
ClaireF
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7th Nov 05 at 18:07   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by loo_goblin
done most of the hard ones, just one from earlier is pissing me off

x/1+x = 22


do not understand that
Ian
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7th Nov 05 at 18:15   View Garage View User's Profile U2U Member Reply With Quote
x
------ = 22
(1+x)
loo_goblin
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7th Nov 05 at 20:20   View User's Profile U2U Member Reply With Quote
yeah got that ian, but u had to work out the shadow legnht aswel
Mase
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7th Nov 05 at 21:02   View Garage View User's Profile U2U Member Reply With Quote
you calculate the H value then use tan(angle) = Opposite / adjecant (sp !!), which will rearrange to :

adjacent = opposite / tan(angle)

[Edited on 07-11-2005 by mase5]

Mase
bradfincham
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7th Nov 05 at 21:23   View User's Profile U2U Member Reply With Quote
SOHCAHTOA

sin = opposite/hypotenuse

cos = adjacent/hypotenuse

tan = opposite/adjacent

remember that and all your trigonometric needs will be solved
Ian
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7th Nov 05 at 21:54   View Garage View User's Profile U2U Member Reply With Quote
You can't use SOHCAHTOA - you don't know enough about either triangle. Its a simultaneous equation of some sort....
gianluigi
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7th Nov 05 at 21:59   View User's Profile U2U Member Reply With Quote
Sex On Hard Concrete Causes A Headache Take One Asprine

thats how i rememberd SOCHATOA
Ian
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7th Nov 05 at 22:06   View Garage View User's Profile U2U Member Reply With Quote
Edit - let me try that again

[Edited on 07-11-2005 by Ian]
Tim
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7th Nov 05 at 22:09   View Garage View User's Profile U2U Member Reply With Quote
3.3 metres (height of tower), but I've been at the pub so might be wrong...


[Edited on 07-11-2005 by Tim]
chris-sri
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7th Nov 05 at 22:13   View User's Profile U2U Member Reply With Quote
Fair play to all you maths people this thread has given me a headache
gianluigi
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7th Nov 05 at 22:33   View User's Profile U2U Member Reply With Quote
ian are you a maths teacher?
Tim
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7th Nov 05 at 22:35   View Garage View User's Profile U2U Member Reply With Quote
Ian just accept I'm right
Ian
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7th Nov 05 at 22:35   View Garage View User's Profile U2U Member Reply With Quote
No, web stuff.
Ian
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7th Nov 05 at 22:36   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Tim
Ian just accept I'm right
Yeah but HOW

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