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Arsey's S15 C1 Model Answers (attached to 1st post)

He got the same inequalities as me but he wrote them separately. I'm asking you why we had to write them separately?

Even i got same ineq. But from graph see the shaded region its not together but seperate so had to write it seperately.

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Reply 121

bnosnehpets

1

Original post by Krollo

You mean you used d=0?
There's nothing wrong with that at all, and I'm sure you'd get the marks if you got 80

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yes, thats what I mean. I just thought it might be a "silly" method.

Reply 122

particlestudent

13

Original post by usmanzubair

Even i got same ineq. But from graph see the shaded region its not together but seperate so had to write it seperately.

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Oh crap.

I guess that's an answer mark gone.

Reply 123

Conservationofmass

12

Original post by usmanzubair

70/75

happy

MashaAllah

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I got the same, hopefully it will be over 90% and then I'll only need a B in stats haha-Stat's is the worst module out of m1,C2,C1,d1,d2 and fp1

Reply 124

Mutleybm1996

19

Original post by Arsey

Here are my solutions.

I didn't think it was an 'easy' paper, quite a few questions with tricky parts.

Expect average(ish) boundaries.

Could I have done x=log(base2)(1/8)?
And do you think these boundaries will be higher/lower than last year?

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Reply 125

Krollo

17

Original post by Mutleybm1996

Could I have done x=log(base2)(1/8)?
And do you think these boundaries will be higher/lower than last year?

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Yes. Nothing wrong with that.

Grade boundaries will probably be a bit lower.

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Reply 126

SleepyJacques

9

On Q7b, how many marks would one lose for not doing anything after finding the two values for y?

Reply 127

usmanzubair

3

Original post by particlestudent

Oh crap.

I guess that's an answer mark gone.

Same here

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Reply 128

Krollo

17

Original post by Jack Xerxes

On Q7b, how many marks would one lose for not doing anything after finding the two values for y?

Probably two.

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Reply 129

Salibo

Check assisttutor.com for unofficial mark scheme

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Reply 130

naxiv

3

Original post by Krollo

Yes. Nothing wrong with that.

Grade boundaries will probably be a bit lower.

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whats you predictions?
60 - A
54 - B are mine
yours?

Reply 131

Krollo

17

Original post by naxiv

whats you predictions?
60 - A
54 - B are mine
yours?

Marginally higher. I'm saying 61-62 for an A. You look about right with the B though imo.

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Reply 132

particlestudent

13

Original post by usmanzubair

Same here

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Hopefully 74/75 is 100UMS

Reply 133

gerin paul

Wouldn't it be k=12 if n=11

Reply 134

urkadee

2

ImageUploadedByStudent Room1431523170.060858.jpg

Original post by particlestudent

I don't understand, my inequalities are exactly the same as Arsey's just together. :confused:

3-2sqrt2>p>3+2sqrt2

Isn't that the same as p<3-2sqrt2 and p>3+2sqrt2????

I tried to draw it to kinda explain. Don't worry you probably lost a mark at most.

Reply 135

Angelo12231

14

Original post by NotNotBatman

Same, I'm really disappointed since I accidentally missed one of the questions (lost 4 marks) and made silly mistakes that I wouldn't normally make.

exactly

Reply 136

Yousf

13

DAM for the factorising question i multiplied by - to get a positive 4xsquared, to make it easer to factorise and then used all those values for drawing the graphs!!!! HOW MANY MARKS WILL I LOSE!?!?!?!?

Reply 137

Angelo12231

14

Original post by Krollo

Marginally higher. I'm saying 61-62 for an A. You look about right with the B though imo.

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The way i think i got 61 or 62....

Reply 138

madmike41

In Q6 in the differentiation, I wrote the first term as 2x^3/x then said it is 2x^-3 instead of 1/2x^-3... This led to me doing all of the 10 mark question wrong due to this one little mistake. Will I lose many marks? Will I get follow through marks if my method is right? :frown:

((

(edited 8 years ago)

Reply 139

Angelo12231

14

Original post by Yousf

DAM for the factorising question i multiplied by - to get a positive 4xsquared, to make it easer to factorise and then used all those values for drawing the graphs!!!! HOW MANY MARKS WILL I LOSE!?!?!?!?

I use to do that a lot but then i realised it has to be equal to something for that to work :/ you'll get all the marks up until that error

Arsey's S15 C1 Model Answers (attached to 1st post)

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