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Mr M's Edexcel GCSE Linear Higher Calculator June 2010 Answers Thread

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thank you Mr M :biggrin:

it is very much appreciated I got about 78 in the non calculator and 86 in this one what would my grade roughly be based on the average mark of 82? just as an idea of course :smile:

Reply 21

Mr M

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Scorpiaz

would describing random sampling as "a method of sampling that has no formula behind it" be correct?

err ... down to the discretion of the marker, I don't think I would credit that

Reply 22

Mr M

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lilGem

thank you Mr M :biggrin:

it is very much appreciated I got about 78 in the non calculator and 86 in this one what would my grade roughly be based on the average mark of 82? just as an idea of course :smile:

A grade

Reply 23

TheWonderKid

On number 15a why isnt the answer -3, -2, -1, 0, 1 I included the number -1 in my answer. please could you tell me if this is just a human error of yours or did i make a mistake? Thanks a lot Mr m

Reply 24

Sivii

Question 20 did you use the sine rule???

Anyone?

Reply 25

RVS2009

I put for random sampling: 'Doing a survey by questioning people they dont know, it could be anyone' is this right?

And the next part I said put all stamps into a non-see through container and pick out 10 stamps.

Are these two answers correct?

Flopped -.-

TheWonderKid

On number 15a why isnt the answer -3, -2, -1, 0, 1 I included the number -1 in my answer. please could you tell me if this is just a human error of yours or did i make a mistake? Thanks a lot Mr m

just a typo, fixed it now, don't stress!

Reply 28

Mr M

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Sivii

Question 20 did you use the sine rule???

Anyone?

You could do. It was easier to use SOHCAHTOA.

Reply 29

Tami S

Mr M isn't it meant to be alternate angles for q.5?
and thanks so much!!!

Reply 30

JChoudhry

Mr M

seems I got the 100, but just to confirm, does the angle bisector make an angle of pi/4 and only have a length equal to the length of the line AB? Thanks once again, I did all three papers that you marked today :mmm:

Reply 31

Sivii

Mr M

You could do. It was easier to use SOHCAHTOA.

Do you by any chance remember the figures so i could quickly check my answer if thats okay?

Reply 32

Mr M

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RVS2009

first bit I don't think is clear enough but the second part is fine

Reply 33

Expendable

"10. Probability
(a) 0.2 (2 marks)
(b) 150 (2 marks)"

Isn't 0.2 x 500 = 100, not 150 :s-smilie:

"13. Plans and elevations
(a) Front : a rectangle 4 cm across and 1 cm high (2 marks)"
Is it not 2cm high as you can see the very front, but also as the back is 2cm high, it steadily rises so you'd see both?

"21. (b) 352 (3 marks)"
That is 147.5+147.5+28.5+28.5, I did the 28.5's but added 150 twice instead, any marks for working?

"23. Similar shapes"
All I wrote was the '25:9' before going off on some random crap, assuming they were spheres for some reason. Any marks?

"27. Graph transformations
(a) (1 mark)
(b) (4,3) (2 marks)
"
For b) I assumed it was reflected in the wrong axis, putting '-4, -3' is that any marks :frown: