x Turn on thread page Beta
 You are Here: Home >< Maths

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

1. Do you think 62-63/75 will be an A?
2. got the inversely proportional bit wrong.... fml i did -k instead of 1/k or whatever so.... method marks possibly?
3. Does anyone know what the vectors question was and how to answer it? Completely messed up the last two parts of it which were 4 marks each
4. What were people's solution for the differential equation
5. (Original post by Eliott2406)
Do you think 62-63/75 will be an A?
I think it will be around 62 for an A*
6. Predictions for 80 UMS, 90 UMS and 100UMS???
7. (Original post by CD223)
I'm gutted. A* gone.

Posted from TSR Mobile
Bruh.. Manchester Met here I come
8. (Original post by Emmanuel12344)
What were people's solution for the differential equation
What was the differential equation? 😊
9. (Original post by Eliott2406)
For the differential equation what values did you have to substitute for x and t?
I did 0 and 0 because it said initially the tank was empty. Could be wrong (probably is)
10. (Original post by SilenceOrNoise)
Dont worry man you done good in C3 so you still have a clear chance of an A*.

(Original post by vee_wuvshugs)
I know how you feel
Put in so much effort all year and I feel like I've ruined it and let people down. I can't do the mark scheme as I got too many wrong

Posted from TSR Mobile
11. (Original post by Freyk2)
I did 0 and 0 because it said initially the tank was empty. Could be wrong (probably is)
I got that - I think it's right!
12. I couldn't do 9c the trig ratio didn't work. Did anyone get it?
13. (Original post by MoHoosen9167)
For the h(x) one, I did: h(x) = 1/2x-3; h'(x)=-2/(2x-3)^2

Then some drivel about how x is negative, (2x-3)^2 is positive so -2/(2x-3)^2 is negative
and the same for positive
so therefore it's decreasing.
How many marks do u think that is worth
14. (Original post by jamal_m96)
I couldn't do 9c the trig ratio didn't work. Did anyone get it?
What?
15. (Original post by Eliott2406)
Do you think 62-63/75 will be an A?
Yes easy. A lot of people in here found it 'easy' but up and down the country it will be a problem from Q6 onwards.
16. If anyone does a mark scheme can someone PM me a link? I'm just so disappointed in myself.

Posted from TSR Mobile
17. (Original post by Freyk2)
I did 0 and 0 because it said initially the tank was empty. Could be wrong (probably is)
No, that's correct. You substituted in t = 0 and x = 0 for C =1.
18. (Original post by Ual12)
For last part of question 3, the decreasing funtion h(x), i differentiated it to 1/(2x-3) , but what did we have to do after that??
I subbed in 3 and said it was >0 so its decreasing,but it was just a guess
I differentated it to 1/2*ln(2x-3) which gave it as increasing so i just subbed in 3 and 4 to h(x) and this showed it was decreasing
19. (Original post by Emmanuel12344)
How many marks do u think that is worth
4/4 I think.
20. (Original post by jamez870)
For E I got (11,0,0) and (24,3,0) I think
Ye that is what I GOT! nice one

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: April 3, 2016
Today on TSR

### Loughborough better than Cambridge

Loughborough at number one

### Can I date a girl with no boobs?

Poll
Useful resources

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE