C2 unofficial answers Watch

boyyo
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#341
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#341
This looks quiet legit good job
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marldor
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#342
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#342
(Original post by Sapereaude54)
How many marks can I expect to lose for substituting x=17 for the perimeter question?
Probably 2 you would have missed the accuracy mark and a method mark.
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imran_
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#343
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#343
i got 67, and its estimated 66 for an A?? thats high.
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Dobby102
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#344
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#344
8 (ii) alt solution
2^{2x+5}-7(2^x)=0
2^{2x+5}=7(2^x)
\log_2(2^{2x+5})=\log_2(7)+\log_  2(2^x)
2x+5=\log_2(7)+x
x=\log_2(7)-5

This is how I did it.
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marldor
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#345
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#345
(Original post by Dobby102)
8 (ii) alt solution
2^{2x+5}-7(2^x)=0
2^{2x+5}=7(2^x)
\log_2(2^{2x+5})=\log_2(7)+\log_  2(2^x)
2x+5=\log_2(7)+x
x=\log_2(7)-5

This is how I did it.
Yeah, if you get x=-2.19 you were right.
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Marlos
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#346
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#346
(Original post by not_lucas1)
look above your post... you failed not him
Wrong I'm afraid, my comment was typed before he posted a correction. Also, any fails made by me are independent of his.
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JAFF2400
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#347
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#347
Guys help me reach 300 views on my C2 video! Would really appreciate it if you shared it with your friends because i can guarantee you that it will make you laugh, if you don't laugh you can sue me!

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discuss
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#348
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#348
(Original post by jaff2400)
guys help me reach 300 views on my c2 video! Would really appreciate it if you shared it with your friends because i can guarantee you that it will make you laugh, if you don't laugh you can sue me!

a grade will be 62 max
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discuss
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(Original post by imran_)
i got 67, and its estimated 66 for an a?? Thats high.
i predict an a grade will be 62 max
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serah.exe
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#350
I retook the C2 paper because last year went so crap lel, and according to this mark scheme I got around 70 YAS. :woo:
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imran_
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(Original post by discuss)
i predict an a grade will be 62 max
for c2? no way thats low. Id say 64
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discuss
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#352
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(Original post by imran_)
for c2? no way thats low. Id say 64
64 - a ( max )
54 - b
47 - c

what do you think

normally not much movement with the c and b grade boundaries but i agree that an A could be 64
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imran_
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#353
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(Original post by discuss)
64 - a ( max )
54 - b
47 - c

what do you think

normally not much movement with the c and b grade boundaries but i agree that an A could be 64
64 seems just right, it was an easy paper to be honest. id say only 4 marks were hard to get in that paper
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discuss
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(Original post by imran_)
64 seems just right, it was an easy paper to be honest. id say only 4 marks were hard to get in that paper
I agree with that . good luck with all your other exams
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discuss
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#355
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#355
What do you think the grade boundaries for A,B and C ?
Thanks
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