edexcel C2 23rd May 2018 unofficial mark scheme Watch

Lcooper20
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#81
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#81
Can someone explain how to get Q7a.
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beebop123
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#82
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#82
what was question 7a please where the answer is written as y=625056
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bantonydon
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#83
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#83
Anyone remember exactly what the question for 9 was?
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tom060601
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#84
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#84
If I got 1000 for the first questions can I get any more marks afterwards with the wrong value of A?
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Aak2000
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#85
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#85
ANYONE REMEMBER QUESTION 7? Something ^(x-) = 500. What is the something?
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unofficialmarksc
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#86
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#86
question 3) c) I got b= 41 and a= -20
and 3)d) I also got something different, but I can’t remember, but the rest of the questions i got the same answers
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Properish
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#87
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#87
I got 51.412 for q1(b)
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IgnoreMyName
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#88
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#88
(Original post by oscar gul)
7176 is right
Explain how, please?
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Chris2964
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#89
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#89
(Original post by Man of Economy)
Lol I kept plugging it in and I kept getting 7175.7??
Yeah I agree
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sjxhsjsjdhd
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#90
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#90
guys i need help what is question 7 again?
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Montsam99
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#91
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#91
How many marks was 4c?
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Aak2000
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#92
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#92
How many marks would I lose if I answered in degrees but instead of radians
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sjxhsjsjdhd
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#93
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#93
(Original post by sportyegg)
Isn’t 3(d) 24x^2, not 29x^2?
do you remember what is question 7?
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oscar gul
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#94
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#94
(Original post by IgnoreMyName)
Explain how, please?
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MØRGS
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#95
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#95
what was question 7?
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RiRi_97
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#96
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#96
(Original post by officialjulie1)
Anyone who got 7176 has failed it’s deep
Yes i got 12824. ... aswell!!! 7176 is wrong
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Montsam99
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#97
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#97
(Original post by Man of Economy)
Lol I kept plugging it in and I kept getting 7175.7??
It asks for it to the nearest integer
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amal99
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#98
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#98
(Original post by shivalakhani)
1) (2,2) and (6,4rt2)
b) r=51.413
2) 128 + 448x +672k^2x^2 +560k^3x^3
b) k=1.5
3) proof
b) a+b=21
c) b=31 a=-10
d) 24x^2 - 34x + 31
4) Area = 8.75
b) Flag area=20.02
c) 26.79
5) centre-(1,-7)
b) r=5rt2
c) y=0 and y=-14
d) x+7y-2=0
6) a=19000
b) U5=12465.9
c) S12=7176
7) y=625056
a) proof
b) x=1/3
8) x=248.6 , 331.4 (degrees)
ii) theta= 0.258 , 2.89 , 3.48 , 5.94
9) A(4,112)
b) (25/4,0)
c) r=79.77

(btw I tutor even over Skype msg me for details)
Any chance u do m1 over skype
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sjxhsjsjdhd
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#99
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#99
(Original post by shivalakhani)
1) (2,2) and (6,4rt2)
b) r=51.413
2) 128 + 448x +672k^2x^2 +560k^3x^3
b) k=1.5
3) proof
b) a+b=21
c) b=31 a=-10
d) 24x^2 - 34x + 31
4) Area = 8.75
b) Flag area=20.02
c) 26.79
5) centre-(1,-7)
b) r=5rt2
c) y=0 and y=-14
d) x+7y-2=0
6) a=19000
b) U5=12465.9
c) S12=7176
7) y=625056
a) proof
b) x=1/3
8) x=248.6 , 331.4 (degrees)
ii) theta= 0.258 , 2.89 , 3.48 , 5.94
9) A(4,112)
b) (25/4,0)
c) r=79.77

(btw I tutor even over Skype msg me for details)
do you remember what question 7 is?
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katie.2594
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#100
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#100
(Original post by Olivia-Rhodes)
For 1) can you write 4rt2 as a decimal as that’s what my calculator gave me it in ??
It asked for exact answer, so wanted it in surd form, if you'd put 8^2/3 in calculator it would have given you 16rt2 then you just divide by 4
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