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OCR Mathematics B Higher Unofficial Mark Scheme

Shall we start an unofficial mark scheme for todays paper? Or if there is one can you leave the link?? Did people get Recipe B??
Reply 1
Avatar for plex-
plex-
8
46 degrees circle theorem
recipe B
Reply 2
Avatar for katherine3
katherine3
OP
9
For the bearings question what did everybody get? I got 175km
Original post by plex-
46 degrees circle theorem
recipe B


I got 48?
42x2=84
180-84=96
96/2=48?
But I may be wrong!
does anyone remember how many marks the spider q was? didn't realise it was Pythagoras :angry:
Original post by stressed turtle
does anyone remember how many marks the spider q was? didn't realise it was Pythagoras :angry:


5 marks?
Reply 6
Avatar for rm715
rm715
15
Did anyone get the last one? I spent about 10 minutes writing drivel and scribbling it out because I just could not do it!
Original post by rm715
Did anyone get the last one? I spent about 10 minutes writing drivel and scribbling it out because I just could not do it!


I got x=0.5 and y=-0.5 and x=-6 and y=-33
Original post by katherine3
For the bearings question what did everybody get? I got 175km


Yeah I got 175.43km and I know a few other people who got 175 too
Reply 9
Avatar for katherine3
katherine3
OP
9
Original post by SamAllen8
Yeah I got 175.43km and I know a few other people who got 175 too


Okay great thank you!!!!😱😱 I found that one quite hard😂
Reply 10
Avatar for plex-
plex-
8
Original post by robyn2000
I got 48?
42x2=84
180-84=96
96/2=48?
But I may be wrong!


Could have been, don't remember the exact number :smile:
Does any think they know what the grade boundaries will be like?
Reply 12
Avatar for plex-
plex-
8
Original post by AdamHarry
Does any think they know what the grade boundaries will be like?


Tests were not particularly difficult, likely 165+ for A*.
Original post by katherine3
Okay great thank you!!!!😱😱 I found that one quite hard😂


Yeah I found that by far the hardest question on the paper
Reply 14
Avatar for rm715
rm715
15
Original post by SamAllen8
I got x=0.5 and y=-0.5 and x=-6 and y=-33


I didn't get that at all haha how did you get that? I think the equations were
Y= 2x^2+16x-9
Y=5x+3 (or-3?)
Original post by rm715
I didn't get that at all haha how did you get that? I think the equations were
Y= 2x^2+16x-9
Y=5x+3 (or-3?)

I put 2x^2+16x-9=5x+/-3 and then made them equal to zero and then used the quadratic formula to find x. Then I put x into the equation to find y for each value of x if that helps.
Reply 16
Avatar for rm715
rm715
15
Original post by SamAllen8
I put 2x^2+16x-9=5x+/-3 and then made them equal to zero and then used the quadratic formula to find x. Then I put x into the equation to find y for each value of x if that helps.


ahh okay thankyou, that's what I started doing but couldn't finish haha oh well it's done now
Original post by rm715
ahh okay thankyou, that's what I started doing but couldn't finish haha oh well it's done now

If you started like that you should get some marks at least and it was quite a tricky question
I wasn't sure if it had to walk on edges or it could on surfaces so I just did the edges with no Pythagoras ffs
it was Pythagoras and trig

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