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# UNOFFICIAL MARKSCHEME Edexcel Maths Calculator paper 09/06/2016

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1. (Original post by i.nevitable)
I got 80.4 degrees but I don't remember using negative reciprocal of cos...
You can also use sine rule
2. (Original post by Avin101Agiggle)
Attachment 547747
I shouldn't be doing this so early on a Saturday
When you put 3.7 into the equation, the answer is too low. When you put 3.8 into the equation, the answer is too high. When you put 3.75 into the equation, it is too low. This means that the answer is between 3.75 and 3.8, which means no matter what number it is between those 2 numbers, they will always round up to 3.8 to 1 decimal place.

Stop embarrassing yourself, it is a grade C question. When you put 3.7 into the equation, the answer is too low. When you put 3.8 into the equation, the answer is too high. When you put 3.75 into the equation, it is too low. This means that x is between 3.75 and 3.8. This means that no matter what number x is between 3.75 and 3.8, they will always round up to 3.8 to 1 decimal place. Stop answering back when you're not sure about the answer and learn from people who know the correct answer.
4. I know 3.7 is wrong, so how many marks would I lose? I took away my answers from 34 and found which one was closet, but I was silly to do that and not use 3.75
5. (Original post by Pst123689)
I know 3.7 is wrong, so how many marks would I lose? I took away my answers from 34 and found which one was closet, but I was silly to do that and not use 3.75
wrong answer and not using 3.75 would be 2 marks
6. (Original post by Lucofthewoods)
wrong answer and not using 3.75 would be 2 marks
Damn I was hoping for 3 marks oh well, I made to many silly little mistakes on this paper
7. (Original post by Meegan543210)
Yeah exactly as long as you know what you're capable of don't let one grade stop you from achieving more than you can, good luck for the future
thanks you too!
8. (Original post by Rajive)
I did 145/1000 X 1.80 and got 0.261. How many marks out of 3 would be lost?
probably a max of 1 mark. You were meant to do 145/100 I believe.
9. I'm literally kicking myself so hard because the silly mistakes I made!!!!!!
10. You know for the last question I got 81.1 because I used 3.142 as pie. And I showed my working out and I didn't round up the answers till I got the last one which is 81.1. How many marks would I get?
11. How many marks would I get for accidentally writing y=5p-x^2? question 18, instead of y=5p^2-x
12. (Original post by densab11)
You know for the last question I got 81.1 because I used 3.142 as pie. And I showed my working out and I didn't round up the answers till I got the last one which is 81.1. How many marks would I get?
The front of the exam paper tells you you can use 3.142. So long as you did not round on ANY calculations and it came to 81.1 (need to check) then you should be okay
13. How many marks would I get for accidentally writing y=5p-x^2? question 18, instead of y=5p^2-x
14. (Original post by Pst123689)
How many marks would I get for accidentally writing y=5p-x^2? question 18, instead of y=5p^2-x
It's out of 3 so you would either get 1 or 2 depending on how harsh the examiner is.

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15. For question 23. I found the upper bound for both V and U. V=14 and U=8.7. I was supposed to find the lower bound for the U. I got 28.75 as final answer and it should be 29.25. How many marks would I get? Tot marks is 3
16. (Original post by densab11)
For question 23. I found the upper bound for both V and U. V=14 and U=8.7. I was supposed to find the lower bound for the U. I got 28.75 as final answer and it should be 29.25. How many marks would I get? Tot marks is 3
I'd say around 1 mark. Mark yourself harshly so then you'll definitely know the marks you have and if you mark yourself leniently you might find yourself doing a bit worse than you thought!

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17. (Original post by DrPeter)
Apologies for delay.

Finding the angle (using absinC/2) followed by trigonometry, pythagoras, subtraction and trigonometry followed by adding the angles together is a ridiculously, long-winded and brilliantly way of doing it, well done !!!
Thank you, don't worry about the delay! It did take at least 5 minutes for me to answer this question at the end, which was why I was concerned about whether or not I had done it right. It's soothing to know that I didn't just get the correct answer by some random stroke of luck. Thank you again
18. i got 142 on both papers i reckon which is maybe 20 marks (max) of an A*
19. just realised i forgot the key on the stem and leaf question fml. Would i drop only 1 mark for that?
20. (Original post by uwotfam)
just realised i forgot the key on the stem and leaf question fml. Would i drop only 1 mark for that?
yep. 2/3

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Updated: August 26, 2016
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