igcse math paper 2

[shefali]

i got the one up as 1.2 km and the nightfair is 9 * 30/100 = 2.7
so 9+2.7=$11.7

the distance is supposed to be 15 i think coz (9-3)/0.40

 

[shefali]

ur area is wrong bec formula was 1/2 a.b sin Q = .5 x 8x6 sin150 = 30

it isnt 6...its 5 i think which is correct
and even if ur calculation is wrong...0.5*8*6*sin150 is 12 not 30

 

[Lilpumpkin]

I hope paper4 is easy :s

i hope so!!

 

[Advait Halve]

It

x invariant and yes 1.25

was 2.5, you had to multiply it by 2.

 

[shefali]

anyways ill still get method marks doesnt matter

It
was 2.5, you had to multiply it by 2.

 

[Khaled Ayman]

i got the gradient abt -1.53 wt abt u?? hw much did u get it?

The gradient is equal to -1.5 Should be + or - 1... so your answer is fine. You can get the exact value of gradient by the calculator. I used it and it turned out to be -1.5

 

[nehaloo]

mmm can u plz tell me hw to find out the gradient using the calculator??

 

[Sanju]

it's ok as u said what is gone is gone ... so lets frgt abt this & hope for the better ...gd luck

ya ...ryt!!wht is gone is gone nd now we hav to think bout de upcomin examz!!

 

[Khaled Ayman]

mmm can u plz tell me hw to find out the gradient using the calculator??

Shift the button under the ALPHA it will give you something like this d/dx (O) x=0. In the (O) write the formula of the line and in o the point where you want to find the gradient then equal... EX. the one that came in the exam was at x=1 so you it will be d/dx ({x/2}+{2/x}) x=1 the answer will be -1.5 this is the gradient. This will come in handy as you can adjust your answer on it in paper 4 but make sure you don't choose the point that will give an accurate answer as this method is consdired cheating so choose a point that will be close to your answer or he might deduct the whole mark

 

[we will do it]

what was the answer for maths p22 scale question
it was something 1by 10

 

[Khaled Ayman]

what was the answer for maths p22 scale question
it was something 1by 10

the sacle question you have to square 1/10 then divide it be the area and cube 1/10 then multiply it with the volume 408000 iw will 408...

 

[Khaled Ayman]

OHHH THANKK YOUUU SOO MUCHH
N WAT ABT THE 1ST QUESTION

Day Wednesday Time 22 15

 

[we will do it]

is it correct i wrote 11 15

 

[FAHMEED]

no but the parallel lines will be 1.25 bcoz they r parallel so they must have the same gradient! is tht crrct?? :/

yes it is correct

 

[Khaled Ayman]

yes it is correct

if you saw the first one was 4y and the second was 2y so you have to multiply it bt two to give you 2.5 i realized that at the last minute. I swear

 

[FAHMEED]

No because 0 isnt a positive integer

Zero is defined as neither negative nor positive.

 

[FAHMEED]

Yeah its 282 and then you have to add 170 to get the final answer.

ans is 452

 

[FAHMEED]

if you saw the first one was 4y and the second was 2y so you have to multiply it bt two to give you 2.5 i realized that at the last minute. I swear

no we had to find k only

 

[~`Heba`~ :)]

Who ia doing english tomorrow?

 

[JimmyCarter]

the gradient is supposed to be -1.5 i checked it by differentiation. I got 1.48 and forgot to add the negative!

AND after simplification what was ur answer?
AND wat was the gradient?[/quotee