I'm an IGCSE Maths Teacher - Post your questions here.

[ZaqZainab]

what does 'reflex angle' mean?

Do you even Google bro it is the angle more than 180 and less than 360

 

[N_Ahmed-97]

Do you even Google bro it is the angle more than 180 and less than 360

 

[lujain26697]

can anyone help me with : 9 (oct/nov) 2010 v1
3(d) (May/june) 2010 v2
7 (c), 8(d) , 10 (e) (May/june) 2010 v1
Please i really suck at math and i need some help:/

 

[Relon]

How to draw a tangent to a curve at a given point to find its slope ?
when i draw a tangent, i find that there is many possible tangents to the same point and each with different slope
so which one i should draw ?
here is a rough example

Note: each color show possible tangent

 

[wajeehaz]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s12_qp_42.pdf
question no 4 part 4

take ACDE as a quadrilateral, opposite angles of a cyclic quad. add up to 180 so
180-42=138

 

[weirdoatlarge77]

URGENT HELP QUESTION C ii) please!

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w10_qp_42.pdf

 

[Ramzaa]

How to find the height of the histogram without drawing it?
http://papers.xtremepapers.com/CIE/Cambridge%20IGCSE/Mathematics%20%280580%29/0580_w12_qp_41.pdf
Q 1) d)ii
Please help..

 

[Ramzaa]

URGENT HELP QUESTION C ii) please!

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w10_qp_42.pdf

Which question?

 

[weirdoatlarge77]

Which question?

Question 7c ii

 

[Ramzaa]

Question 7c ii

f(x) = k has 3 solutions
u will have to draw a line which meets the curve at 3 points, out of which any one value of x u have to write.
hope u understood
now u clear mu doubt

 

[ZaqZainab]

Omg exam in about 4 hours

 

[notnek01]

Please do not post in this thread for the next 24 hours.

 

[ZaqZainab]

What about the doubts?

 

[Ramzaa]

please someone reply to my thread to!

 

[Lightning soul]

Sir, I don't know how to do this question": Question 8-(b)
http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_w10_qp_42.pdf

It's 16. Triangle E is an enlargement of triangle A by a scale factor of -4. The negative symbol indicates that the triangle is inversed, which makes no difference to the area so you can ignore that. The 4 indicates that each side of E is 4 times the length of the corresponding side of A. So if each length in E is 4 times that of A, then the area is 4^2 which is 16

 

[Lightning soul]

http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s12_qp_42.pdf
1 more q
Q7 b
i did 1/3*2/5 + 2/3*1/9 = 11/45
but the ans is 4/9
can anyone explain plz :/

It's 8b
You forgot to include the possibility that it rains today and doesn't rain tomorrow. The question says that it rains at least one of the days. So it should be 1/3*2/5 + 1/3*3/5 + 2/3*1/9

 

[Srishti2603]

Hello,

It's getting close to exam time and I'm sure there are many past paper questions that students are having difficulty with. I noticed that most questions in other threads go unanswered so I thought I'd make this thread that only contains past paper questions.

So if you have an IGCSE Maths past paper question please give the i) year ii) paper number and iii) question number. Also, you must post all your working/ideas. If you don't tell me where you're up to, I can't (and won't) help you.

Hey, can I please know the grade boundaries??
Any file if you have for the same?

 

[notnek01]

Hey, can I please know the grade boundaries??
Any file if you have for the same?

The grade boundaries for what? All the past grade boundaries can be found on this website.

 

[Srishti2603]

The grade boundaries for what? All the past grade boundaries can be found on this website.

The marks for both the papers add up to 200.
What I mean is, how much for A*
A
B, and so on.
The marks for particular grade.

 

[notnek01]

The marks for both the papers add up to 200.
What I mean is, how much for A*
A
B, and so on.
The marks for particular grade.

All this information for 2012 and 2011 exams can be found on this website. For papers before then, the boundaries have not been published by CIE.