Edexcel igcse maths 7th June 2018 Unofficial Markscheme

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gcsestudent1118
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#1
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Hey guys , please post your answers below - unofficial mark scheme

Thank you ... and how did you guys do ?
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Amro.ka
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#2
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The exam was so tricky but not hard
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mrbubbles123
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for the last two questions I got x is 4 for the secant question and 0 for the sum of the thirty terms (nice cancelling there!)
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mmmmmmm88888
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found it tricky but was ok, messed up the hexagon question
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Daniellafreedman
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What was question 22??
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gcsestudent1118
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Ur talking about 4HR?
Cos I did 4H it was only 20 questions
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Partledan
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For second last one I got 55/16 bc 7+4 times 5 is 55 and that equals 16 times x
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ashylolz
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For the externally intersecting chords, I think you have to multiply the entire length of the line by the small bit, so (7 4 5)*5=x(x 16) and you find x=4. I messed up my brackets and got x as 8 but hey ho.
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riri13913
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what was the answer to the hexagon question...the working out i did looked a bit too easy for 5 marks??
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riri13913
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(Original post by clara1806)
I found 250
ok same phew
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gcsestudent1118
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(Original post by riri13913)
ok same phew
did u guys do 9-1?
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riri13913
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also how did people do the graph question where u had to draw a line to find the values?
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brainmaster
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#13
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(Original post by riri13913)
ok same phew
wowwowowo they clearly stated OBTUSE ANGLE........so 360-250 = 110.....dw you will get few marks for method
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riri13913
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(Original post by gcsestudent1118)
did u guys do 9-1?
yes
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Jakehsgvdbe
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(Original post by riri13913)
ok same phew
I got that as well but it may be there exterior angle as that took more working and is obtuse.
The 250 is over 180 so isn’t it was badly worded but it may be 110
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gcsestudent1118
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(Original post by riri13913)
yes
I did A*-G
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brainmaster
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(Original post by riri13913)
also how did people do the graph question where u had to draw a line to find the values?
subtract the both equations so you get y= -2x+3 and then draw it and it will cross the curve at three points.
The x coordinates of intersection will be the solution
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brainmaster
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(Original post by gcsestudent1118)
Hey guys , please post your answers below - unofficial mark scheme

Thank you ... and how did you guys do ?
First time edexcel is wrong...the last question wasn't solvable.....as far as i know
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Nikhita_
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(Original post by brainmaster)
First time edexcel is wrong...the last question wasn't solvable.....as far as i know
the last question was so hard, tbh I found the one before that impossible as well 😂😂
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schkolade
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What do you guys think the grade boundaries will be for a 9?
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