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Author Topic: Maths Paper 4 May June 2008  (Read 1874 times)

Offline zubair_slipknot

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Maths Paper 4 May June 2008
« on: May 17, 2009, 07:38:59 am »
There is probablity question on pg3 question 3 (a) and (b)...can someone plz help me as i totoaly suck in probablity... :-[ :'(
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Offline Ukhti-R

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Re: Maths Paper 4 May June 2008
« Reply #1 on: May 17, 2009, 07:44:34 am »
ooooh, tht paper is hard man
Ill be finishing it off later on 2day
Ill probaby let u know then  :D

By the way, for P2, the locus Question- we hd to draw parallel lines,  who did tht ?
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Offline zubair_slipknot

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Re: Maths Paper 4 May June 2008
« Reply #2 on: May 17, 2009, 07:46:08 am »
thx for your help....yea tht was confusing and i had less time...
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Offline Ukhti-R

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Re: Maths Paper 4 May June 2008
« Reply #3 on: May 17, 2009, 07:47:31 am »
its k, but I didnt help  :P

so wot did u do fr tht question then ?
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"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]

Offline Tammy

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Re: Maths Paper 4 May June 2008
« Reply #4 on: May 17, 2009, 07:49:31 am »
In paper 2... the locus thing
I drew two angle bisectors... one horizontal and the other vertical.
The parallel lines are wrong!
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Offline Ukhti-R

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Re: Maths Paper 4 May June 2008
« Reply #5 on: May 17, 2009, 07:51:58 am »
angle bisectors !?!!
noooo mate ..

how do u know parallel lines r rong ?
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"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]

Offline zubair_slipknot

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Re: Maths Paper 4 May June 2008
« Reply #6 on: May 17, 2009, 07:52:27 am »
well i did the (a) part

(i) P=1/3
    q=3/8
    r=6/8
    s=2/8
but i wanted to verify it whether its correct or not...the (b) part i have no idea how to do
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Offline zubair_slipknot

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Re: Maths Paper 4 May June 2008
« Reply #7 on: May 17, 2009, 07:55:07 am »
(ii) 5/12
(iii) 5/18
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the only way to pass in IGCSE is to be determinant and should have a good self esteem...thts the best description i can get from my mind!!!!

Offline zubair_slipknot

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Re: Maths Paper 4 May June 2008
« Reply #8 on: May 17, 2009, 08:00:14 am »
any help in october novmeber 2008 paper...tell me...i will try my best to help
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Offline Ghost Of Highbury

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Re: Maths Paper 4 May June 2008
« Reply #9 on: May 17, 2009, 08:03:48 am »
okk.,
your a)i) answers are correct...By the way...r=6/8...=3/4 (lowest terms, always)
  a)ii) is correct but a)iii) ...the answer is 2/3

a)iii) A white ball can pop up from bag A OR bag b
   the probability of white ball from bag A is (2/3 * 5/8)
   the probability of white ball from Bag B is (1/3*3/4)
soo u add them up because its OR....i.e (2/3*5/8)+(1/3*3/4)...= 5/12 + 1/4 = 2/3
 :) :) hope u understood

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Re: Maths Paper 4 May June 2008
« Reply #10 on: May 17, 2009, 08:09:42 am »
in paper 2 locii question, the answer is two/four angle bisectors, one on top, on left, right, down... or just one vertical and one horizontal. i am 100% sure of this.... i did it wrong though, i made only one line...

the question:
draw the locii for all points equidistant from line AC and line BD (whatever the letter were) inside the quadrilateral ABCD.

the drawing was something like this: (ascii art, i suck at it...)
A\------------ B
   \             /
    \           /                 there were already lines between A and C, and between B and D, just its too hard to draw them
     \         /                                 on this diagram, because there are only a few different symbols for slants, none work... (/\)
   D \------ C
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Offline I Jimmy I

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Re: Maths Paper 4 May June 2008
« Reply #11 on: May 17, 2009, 08:20:10 am »
OMG!!!!!!!!!!!!!!!!!!!!!!!!!
Tomorrow is Business and Maths and I still didnt study a thing!!!!!
Im SCREWED!!!!!!!!!!!!!!!!!!!!
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Fail your exams NOW!!!!!
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