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

# AQA maths core 1, 13th May 2015 watch

1. (Original post by DexterMabel123)
i got b =7
SAME!! I got so confused and went back to it at the end, Pythagoras!
2. (Original post by JNicko)
Yeah, I got this

Then the triangle was 180/5, so the area was 180/5 - 108/5 = 72/5
trapezium mate

trapezium = 54

54 - 108/5 = 162/5 or 32.4
3. I found the cylinder question quite challenging but the rest of the exam wasn't bad.
4. (Original post by laur a)
i got the 108/5 one too!! What did everyone get for the chord one where you had to find the shortest distance?
I got 7, so did 5 people I spoke to after the exam, so I'd say 7 is a safe bet
5. Fairly confident of every question apart from the first 5 marks on the cylinder (i know what i did wrong now).
Will hopefully only lose a couple of marks on all the other questions, so i should get an A.
Waiting for an unofficial mark scheme
6. (Original post by JNicko)
k < 4, k > -4/9
I got that but I just realised that I put 4/9 instead of -4/9. What a stupid mark to lose there. I got all the workings correct as well but I just forgot to add the minus.

Posted from TSR Mobile
7. What did everyone get for the third question when you solve two equations sim. to find the coordinate of k or something
8. Chord was 7 was Pythagoras, root of (2root5)^2 -1^2 which is root 49 so shortest distance is 7
9. 5 root 2 squared - 1 squared = root 49
which was then 7
10. (Original post by Hellohello1237)
trapezium mate

trapezium = 54

54 - 108/5 = 162/5 or 32.4
Completely forgot about that, guess I rushed it
11. (Original post by SBurn98)
Chord was 7 was Pythagoras, root of (2root5)^2 -1^2 which is root 49 so shortest distance is 7
yeyyy i got 7 too
12. (Original post by laur a)
What did everyone get for the third question when you solve two equations sim. to find the coordinate of k or something
The positive value for K was 4 I think
13. So on a scale of 1-10, 10 being the hardest; how hard did people find the test?
14. i did 2(square root of 5) - QP^2 which = to 20-4=16
square root of 16=4
15. What did everyone get for the integration question?!?
16. For the integration and finding the area of shaded part i forgot to simplify from 324/10 to 162/5- will I lose a mark cos I can't remember whether they specifically asked for it in the simplest form
17. Solid 9.
(Original post by chantsmariexx)
So on a scale of 1-10, 10 being the hardest; how hard did people find the test?
18. (Original post by chantsmariexx)
So on a scale of 1-10, 10 being the hardest; how hard did people find the test?
The paper was great apart from the cyl question

Think the grade boundries will be rather low this year 61 for an A i'd say
19. 1) -5/3
coordinate A (9, -4)

2) 7+ √15

3) y=-10x -4
108/5
162/5

6) show something
r= 4
second derivative = -12pi so it's a max value

8) -4/9 < k < 4

Dunno what question number
Chord to centre = 7
20. (Original post by chantsmariexx)
So on a scale of 1-10, 10 being the hardest; how hard did people find the test?
a good 8

Reply
Submit reply
Turn on thread page Beta

### Related university courses

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: January 27, 2016
Today on TSR

### Edexcel C4 Maths Unofficial Markscheme

Find out how you've done here

### 1,926

students online now

Exam discussions

Poll
Useful resources

## Make your revision easier

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

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.