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# Edexcel Maths - Unit 2 Higher Tier March 5th 2012

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1. *DAMN
2. (Original post by james mctide)
for area of segment i did 1/2 x r squared x sin35-triangle and the found area of sector,then i misused them from each other,is that right??
Nice If you got 119 for area of segment, then that's correct.
3. Did anyone get something like 20x^2+20x+5 = 20x^2+21x-5 In the end question.
I was stuck on this bit for ages and then I realized -5 from -5 is 10. Lol.
4. (Original post by Putch1)
Nice If you got 119 for area of segment, then that's correct.
was workingout correct mate?
5. yeah, i did then i just solved it like an inequality and got x=10
6. Cool
7. (Original post by pseudonymegg)
yeah, i did then i just solved it like an inequality and got x=10
i got working out but left it as 5!! will i still get marks
8. ooo, for the upper/lower bound questions i got the correct answers,
i just decided to round up to 4 cause of 1dp,

would i still get the marks?
9. (Original post by flyhigh99)
ooo, for the upper/lower bound questions i got the correct answers,
i just decided to round up to 4 cause of 1dp,

would i still get the marks?
If you calculated upper bound as 3.61... and lower bound as 3.59.. then you would probably get 3/4 marks. 3.6 is the final answer and had to give reasons.
10. (Original post by flyhigh99)
ooo, for the upper/lower bound questions i got the correct answers,
i just decided to round up to 4 cause of 1dp,

would i still get the marks?
yh u will, i wrote 2anwsers ,the ub and lb which are correct an left it like that is that ok?
11. (Original post by james mctide)
was workingout correct mate?
I think so. for area of sector i did angle/360 X r^2pie
Then I use the area of triangle rule to find the area. Finally subtract area of sector from area of triangle

(Original post by james mctide)
i got working out but left it as 5!! will i still get marks
12. (Original post by Putch1)
I think so. for area of sector i did angle/360 X r^2pie
Then I use the area of triangle rule to find the area. Finally subtract area of sector from area of triangle

yeah i did that and i simplified to x=5 an thanks for replyin
13. here you you go my freinds! anwsers i got 140+ is it an A?
Attached Files
14. 21012 March 4H Edexcel red 1.pdf (462.4 KB, 1524 views)
15. 21012 March 4H Edexcel red 2.pdf (755.6 KB, 1097 views)
16. how many marks is an A*. Im aiming for an A*. In the non-calculator i got a minimuim of 75 marks and in the calculator i got a minimuim of 90.
17. (Original post by james mctide)
here you you go my freinds! anwsers i got 140+ is it an A?
Thanks so much! I was freaking so bad, lol!

How many marks is the Histograms Q worth, as the marks have been cut out?

18. in november i was one mark off an A this year if grade boundaries are 140 for an A im at risk again can anyone give an educated guess on A boundary?
19. (Original post by james mctide)
i got working out but left it as 5!! will i still get marks
yeah, you should get all the working marks because usually it's only one mark for the correct answer and the rest of the marks for the working.. so thats like 4 marks
20. (Original post by sedagezmis)
how many marks is an A*. Im aiming for an A*. In the non-calculator i got a minimuim of 75 marks and in the calculator i got a minimuim of 90.
my maths teacher told me the minimum boundary for an a* is usually 160 or so
21. (Original post by Biggabaggaboo)
Thanks so much! I was freaking so bad, lol!

How many marks is the Histograms Q worth, as the marks have been cut out?

i think it was about 4 marks
22. whats the overall mark for me to get a C or a B?

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