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# AQA A2 Mathematics MPC4 Core 4 - 9th June 2015 [Discussion & unofficial markscheme] watch

1. (Original post by l1lvink)
If you got everything right up to where you calculated C incorrectly, you will get some marks for that. If you used the correct method after incorrectly calculating C, you might still get a method mark, but I wouldn't expect much
so like 2/3 marks?
2. (Original post by katie2828)
so like 2/3 marks?
Yep
3. 59or60 in Core3, 60/61 in Core4
How many UMS do you think iv got?
4. Sign error possibly on Q7? I had as -5/8 not 11/8, I may be wrong!
5. (Original post by Jankie)
I thought that too, what an intelligent individual.
seems like a really lovely person dont they
6. Can someone explain how to find point E for the second part of the vectors question?
7. About to edit the mark scheme again. What changes should be made?

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8. (Original post by Jed-Singh)
59or60 in Core3, 60/61 in Core4
How many UMS do you think iv got?
150 across the two of them.
9. (Original post by Jed-Singh)
59or60 in Core3, 60/61 in Core4
How many UMS do you think iv got?
not sure about ums but expect an A
10. (Original post by JackyDoyle4)
Don't hate on me because I actually get questions right
Well that really epitomises your ignorance. I'm not "hating" on you for your pseudo mathematical competence, I'm hating on you for being unhelpful, disrespectful and demoralising others.
11. (Original post by JackyDoyle4)
150 across the two of them.
that low you reckon?
12. (Original post by Kennethm)
not sure about ums but expect an A
high A or low A?
13. (Original post by Jed-Singh)
that low you reckon?
75 isn't that low, still a respectable mid B
14. For 7c - if I wrote dr/dt = k/r instead of dr/dt = k/pir^2. How many marks would I get?

(I know I'll get none according to JackyDoyle4 and the examiners will most likely penalise me, scoring me 0UMS overall in this exam)
15. (Original post by CD223)
About to edit the mark scheme again. What changes should be made?

Posted from TSR Mobile
Remove the first solution to 8a .
16. (Original post by datpr0)
Well that really epitomises your ignorance. I'm not "hating" on you for your pseudo mathematical competence, I'm hating on you for being unhelpful, disrespectful and demoralising others.
Ooooo look at me, I can use big words!

Bet you get loads of girls.
17. (Original post by datpr0)
Remove the first solution to 7b .
The 11/8 one?
18. (Original post by JackyDoyle4)
75 isn't that low, still a respectable mid B
yeah sure, but 60+ in both exams I thought might be a safe a overall like 170
19. (Original post by Jankie)
For 7c - if I wrote dr/dt = k/r instead of dr/dt = k/pir^2. How many marks would I get?

(I know I'll get none according to JackyDoyle4 and the examiners will most likely penalise me, scoring me 0UMS overall in this exam)
You will drop one mark
20. For the second to last part of question 8, is it right to cancel the pie to say the differential=k/(r^2) as a constant divided by pie is still a constant?

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