Author Topic: IGCSE MATHS Doubts  (Read 129855 times)

Offline shlok tandon

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Re: IGCSE MATHS Doubts
« Reply #690 on: May 13, 2010, 05:15:13 pm »
tomorrows english and ict
quite a long day for me
so what preparations have u people done for english?

Offline dsiddiqi11

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Re: IGCSE MATHS Doubts
« Reply #691 on: May 13, 2010, 05:48:30 pm »
ya i think so too ....for me i should half of the thing hence i might max loose two ..... anyways i have english so no more thinkin abt math ..lol .....

gd luck everyone in our english tomorrow :D

i take english as a second language, even though its my first, so i have no worries at all for english. By the way i was doing november 09 paper 4, math and it was pretty easy, so i hope we get something like that on our paper 4,but slightly easier, lol. so wat english do u take.

Offline Amberr

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Re: IGCSE MATHS Doubts
« Reply #692 on: May 14, 2010, 04:13:15 am »
you know the question about the find the coordinates of the midpoint of the diagonal... there was no need to use simultaneous eq ryt>>>???? and for the gradient i wrote 3x+y=14.. doesnt the gradient stay the same... in a parallell line???

Offline maths234

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Re: IGCSE MATHS Doubts
« Reply #693 on: May 14, 2010, 06:29:03 am »
hi, i'm new here, but I just want to know if anyone can remember the question that you had to change m^2 to mm^2 ???
and about the english language, is there always a summary question?

Offline maths234

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Re: IGCSE MATHS Doubts
« Reply #694 on: May 14, 2010, 06:43:38 am »
you know the question about the find the coordinates of the midpoint of the diagonal... there was no need to use simultaneous eq ryt>>>???? and for the gradient i wrote 3x+y=14.. doesnt the gradient stay the same... in a parallell line???

no there was no need, for me, i just substituted x and y for the co-ordinates of the point m, yes the gradient stays the same for parallel lines, its the y-intercept that is different, so in other words your answer is very correct
« Last Edit: May 14, 2010, 06:48:10 am by maths234 »

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Re: IGCSE MATHS Doubts
« Reply #695 on: May 14, 2010, 10:16:18 am »
hi, i'm new here, but I just want to know if anyone can remember the question that you had to change m^2 to mm^2 ???
and about the english language, is there always a summary question?

yup 
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Offline Amberr

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Re: IGCSE MATHS Doubts
« Reply #696 on: May 14, 2010, 02:51:31 pm »
hi, i'm new here, but I just want to know if anyone can remember the question that you had to change m^2 to mm^2 ???
and about the english language, is there always a summary question?

for the m^2 to mm^2
i think i just multiplyed by 1000 cuz theres 100 cm in 1 metre. and then theres 10 mm in 1 cm .. so yeah.. i dunno.:S ???
and i dont take english lang.. cuz i did my math igcse one year earlier (this year) when im supposed to do it next year but the teacher was like no do it this year.. soo yeah.. thts why im sorry i cant help u on the english.. cuz im not doing english earlier.. and its probably late.. isnt the exam like over?? if it is.. then how did it go?????

Offline BusinessMaNiac! ( Shizzle)

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Re: IGCSE MATHS Doubts
« Reply #697 on: May 14, 2010, 05:07:09 pm »
Heyylo..
Cann ne one help me out in this MATHS PAPER 4 Question...
M/J 1997
Qs. 3...... i dont get b(ii
 and also
Qs.9 - can ne one tell me what sequence SHCEME B is following... - i think marking scheme is wrong.
that would be Qs.9 a(ii) Scheme B.

I HATE SEQUENCES!!!

Offline mdwael

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IGCSE MATHS Doubts
« Reply #698 on: May 14, 2010, 05:42:50 pm »
Hey im new to this forums and I dont want to sound like a hysteric but theres somethings in the recent paper 2 exam I want to make sure of.
In the change the subject x question, I got the correct answer but I wrote x=(correct answer) but they already  wrote x= we just had to write the answer, is it ok if I scatched the printed (x=) and wrote it myself?
Also the R on the shading part I wrote R in pen not pencil is it ok? I did the shading with pencil just the R in pen.. Also the maximum speed I got it 16.25 but I dont remeber writing m/s, the unit is it fine?

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Offline Fastal

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Re: IGCSE MATHS Doubts
« Reply #699 on: May 14, 2010, 05:56:43 pm »
Hey im new to this forums and I dont want to sound like a hysteric but theres somethings in the recent paper 2 exam I want to make sure of.
In the change the subject x question, I got the correct answer but I wrote x=(correct answer) but they already  wrote x= we just had to write the answer, is it ok if I scatched the printed (x=) and wrote it myself?
Also the R on the shading part I wrote R in pen not pencil is it ok? I did the shading with pencil just the R in pen.. Also the maximum speed I got it 16.25 but I dont remeber writing m/s, the unit is it fine?



everythings fine, dont freak out ;)

Offline gold_wings

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Re: IGCSE MATHS Doubts
« Reply #700 on: May 14, 2010, 07:19:01 pm »
The unit for the speed was already given.

Offline mdwael

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Re: IGCSE MATHS Doubts
« Reply #701 on: May 14, 2010, 07:30:27 pm »
really? *phew* what a relief I dont remeber writing it so thank god it was already given..
By the way how much marks does the "time in minute and seconds" question carry, it was about that elevator in the snow or something the ii part, I got it wrong :( and I got the equation of line wrong and the midpoint wrong how much do you the marks total which I lost?
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Offline mdwael

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Re: IGCSE MATHS Doubts
« Reply #702 on: May 14, 2010, 07:48:56 pm »
for the m^2 to mm^2
i think i just multiplyed by 1000 cuz theres 100 cm in 1 metre. and then theres 10 mm in 1 cm .. so yeah.. i dunno.:S ???
and i dont take english lang.. cuz i did my math igcse one year earlier (this year) when im supposed to do it next year but the teacher was like no do it this year.. soo yeah.. thts why im sorry i cant help u on the english.. cuz im not doing english earlier.. and its probably late.. isnt the exam like over?? if it is.. then how did it go?????

Let me sum this up for you so you'll understand it better,

take 1 square meter, 1 square meter which has side 1 meter has an area of:
m x m =m^2

since one meter is 1000 mm changing from m^2 to mm^2 involves the following;

m x m = 1000mm x 1000mm = m^2
so you just had to multiply it by 1000000 and youll get an answer of 1.67 x 10^7
« Last Edit: May 14, 2010, 07:57:39 pm by mdwael »
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Offline J.Darren

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Re: IGCSE MATHS Doubts
« Reply #703 on: May 15, 2010, 05:44:00 am »
you know the question about the find the coordinates of the midpoint of the diagonal... there was no need to use simultaneous eq ryt>>>???? and for the gradient i wrote 3x+y=14.. doesnt the gradient stay the same... in a parallell line???
Mid-point Coordinates : [(X + X1) / 2 ) ,(Y + Y1) / 2 )]

Gradient of Parallel Lines are the same. So a line with equation y = -3 x + 14 will have a grdient of - 3 and y-intercept at (0, 14).
Do not go where the path may lead. Go instead where there is no path and leave a trail.

Offline maths234

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Re: IGCSE MATHS Doubts
« Reply #704 on: May 15, 2010, 06:01:25 am »
for the m^2 to mm^2
i think i just multiplyed by 1000 cuz theres 100 cm in 1 metre. and then theres 10 mm in 1 cm .. so yeah.. i dunno.:S ???
and i dont take english lang.. cuz i did my math igcse one year earlier (this year) when im supposed to do it next year but the teacher was like no do it this year.. soo yeah.. thts why im sorry i cant help u on the english.. cuz im not doing english earlier.. and its probably late.. isnt the exam like over?? if it is.. then how did it go?????
It went okay, I'm doing all my exams earlier too, though the question was a bit tough, I spent 30 minutes trying to figure out what they were saying  :-[