IGCSE maths paper 4 variant 2. huge discusssion

[aab.babtain]

This thread is for people sharing their answers. ill share mine. u comment on them. lets all be brief and honest.

 

[dubi2pro]

rate of flow?

 

[shoaib672002]

OH MY GOD SUCH A HUGE THREAD !!! lol

 

[aab.babtain]

1a. 240/12 * 7= 20
b. 2:3
c.144
d.89.99
e.4.08

3. 86.8
51.2
6701
2180


5. 2.41

1m 24s

14

6.a 21 42

3.79 38


7.a 60,9 60.5


8.a 600/x 600/x+1 b 100

9. 45, 3/40 101/120. 5/4

10 a.2
b x+1

c. x2-2x+2

-6

2.61

0.382

 

[Mr.Physics]

what were the angles
the 4 and 5 mark questions ?????

 

[Mr.Physics]

1 a is wrong
The question said show that Kate received 140 dollars
It is 7/12*240

YEP !!!

 

[Mr.Physics]

THE ANGLE OF Q6 IS ALSO WRONG
ONE WAS 38* AND THE SECOND ONE WAS 40*

 

[mohammed _suliman]

THE ANGLE OF Q6 IS ALSO WRONG
ONE WAS 38* AND THE SECOND ONE WAS 40*

 

[aab.babtain]

THE ANGLE OF Q6 IS ALSO WRONG
ONE WAS 38* AND THE SECOND ONE WAS 40*

the last one was 38.


and bro 1.a i just showed them that i added the 2 numbers. thats all that matters

and the angles bit is all right, i never make angle mistakes

 

[medo ashraf]

guys please how did you do the last page , and was the diagrams to scale or not to scale?

 

[WarlockMage]

could someone tell me how they got the probability answers

 

[Mr.Physics]

PROBABILITY WAS 1-(3/4)^5 = 781/1024

 

[WarlockMage]

thanks and what about the one with the answer 3/40 what was the working for that?

 

[qwertypoiu]

Does it matter if I didn't round to 3 significant figures the cost of the field?

 

[FlameBlazer69]

Close the thread please exam's over :3

 

[Ahmad786]

What was the ans for volume discharged qtn ?

 

[The_Boss]

Isnt 1D suppose to be $90 as it said round to the nearest cent.
3rd question last part is something like 2177.5(OR 2117.5) as for cost the answer should be to 2 d.p.
9th question(probability) last part the answer is 781/1024
10b the answer is x-1=g^-1(X) 10th question last one was g(x)
Last page the answers were : 1/3 , 1/5, 1/4, 1/6 , 0.363

 

[Mr.Physics]

Isnt 1D suppose to be $90 as it said round to the nearest cent.
3rd question last part is something like 2177.5(OR 2117.5) as for cost the answer should be to 2 d.p.
9th question(probability) last part the answer is 781/1024
10b the answer is x-1=g^-1(X) 10th question last one was g(x)
Last page the answers were : 1/3 , 1/5, 1/4, 1/6 , 0.363

HEY BUDDY IN THAT QUESTION WHERE IT ASKED THAT IS INVERSE FUNCTION EQUAL TO THE ORIGINAL ONE ??
ITS ANSWERS WERE BOTH F^-1(X) AND G^-1(X)

 

[WarlockMage]

yes both g^-1(x) and f^-1(x), and was there any working required for the circle angle question with the answer 21 and 42

 

[Mr.Physics]

yes both g^-1(x) and f^-1(x), and was there any working required for the circle angle question with the answer 21 and 42

21 AND 42 HOW ?????????
THEY WERE 38 AND 40