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Maths paper 2 edexcel

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Original post by qwerty0301
I got really similar answers but for the last question i got 80.1 . There's a lotta debate for the answer to that q so I have no idea what it is...




I got pretty much exactly what he got. Makes me feel better
Reply 21
Avatar for ewales
ewales
1
Yh, That looks good did you do that off the paper?
Original post by LokiiR
here are the answers I got, not sure if theyre all right or not
1a)
1 | 4689
2 | 123579
3 | 04688
4 | 13668
b) 0.45 or 9/20
2a) 30abc
b) 3(y+2)
c) x^2-3x
3) 9.25
4)The smallest packet (18) which was 22.2pence per pack
5) Green was 0.09, Red was 0.36
6a) 20.3
b) 68.04kg
c) 2.61m
7)3.8
8a) 4:3
b) 480 pixels (720/3 * 2)
9) x = 124 degrees
10) 7.92
11) 42.29
12) x = 144 degrees
13)
-2 -1 0 1 2
-1 3 1 -1 3
Draw curve
14)3 metal bars
15) No, because 7766.22 was greater than 7500 pounds
16a) 128g
b) 11g
17) 30.1 degrees
18a) 10a^5b^4
b) y = 5p^2 - x
19) 11 males from year 12
20) x = 0.29 or -2.29
21) 29.25
22) 28.9
23) Histogram:
1.6
3.2
2.4
1.8
0.3
24a) 1/-4-3x or -1/3x+4
b) 2x / x^2-1 or 2x/ (x+1)(x-1)
25) 80.4 degrees
What was Question 16?
Reply 23
Avatar for LokiiR
LokiiR
9
Original post by Jimbobbybryan
What was Question 16?

it was 128g
and part 2 was 11g i believe but i think thered be a range like 10-12 grams

Original post by ewales
Yh, That looks good did you do that off the paper?


what do u mean? i wrote it off durin exam and took it out
Reply 24
Avatar for Afsanax
Afsanax
4
Original post by LokiiR
it was 128g
and part 2 was 11g i believe but i think thered be a range like 10-12 grams



what do u mean? i wrote it off durin exam and took it out


i think they meant did you actually have the graph in front of you and draw the lines and get the answers (which obviously you did bc u sat the exam so...:s-smilie:)
Original post by LokiiR
it was 128g
and part 2 was 11g i believe but i think thered be a range like 10-12 grams



I mean what was the question?
I got the same answer as you though
Reply 26
Avatar for Afsanax
Afsanax
4
[QUOTE="Jimbobbybryan;65598273"]
Original post by LokiiR
it was 128g
and part 2 was 11g i believe but i think thered be a range like 10-12 grams



I mean what was the question?
I got the same answer as you though


if i remember correctly i think it was a cumulative frequency graph with a curve already draw

you had to find the median and the interquartile range
[QUOTE="Afsanax;65598777"]
Original post by Jimbobbybryan


if i remember correctly i think it was a cumulative frequency graph with a curve already draw

you had to find the median and the interquartile range


Thanks
Reply 28
Avatar for 2007RSP
2007RSP
Original post by Rajive
So baffled at question 24a... How did you guys get that? I thought they weren't the same so I didn't cancel out, plus it was 2 marks


I think that you had times the whole fraction by -1 and then factorise the bottom and cancel out

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