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Standard Grade Maths !

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Original post by humza100
was 6a the surd one, if it was it got 2 root 11


I got that too, I meant the one about "find the equation of the axis of symmetry" and also the one with indices where you had to solve for n.
Original post by mrsnicket
Ahh yes, the d varies directly as blah blah..., I got 40cm :biggrin:


Me too!
Reply 62
YASS! :biggrin: I wrote a little paragraph where I went off on a tangent (:tongue:) explaining why x couldn't be 1. Time well spent haha...
Reply 63
Woah my friend lectured to me about why the depth should be 37... I feel good for having 40 now :wink:
Reply 64
Original post by anthonyfl
No I got that one, I'm talking about the (2)^n = 1/64 one, something like that?


I got n= -2, cos the first answer was 64, and I thought if it was a negative power you put 1 over it, therefore getting 1/64...? :confused:
Original post by anthonyfl
No I got that one, I'm talking about the (2)^n = 1/64 one, something like that?


Oh I got -2 for n!
Original post by regalrose
Woah my friend lectured to me about why the depth should be 37... I feel good for having 40 now :wink:


It's definitely 40cm!
Reply 67
That is what I got too and my teacher said it was correct. (n=-2)
(edited 11 years ago)
Reply 68
Original post by regalrose
That is what I got too and my math teacher said it was correct. (n=-2)


:^_^:
Reply 69
Also (n/2)x(n/2+1) for the second last one. The last one I got 2550 = 50x51
Reply 70
Original post by regalrose
Also (n/2)x(n/2+1) for the second last one. The last one I got 2550 = 50x51


Yeah, the formula was 1/2n(1/2n+1) I put...?
Reply 71
Yep!!
Reply 72
Original post by regalrose
Yep!!


I feel much better about paper 1 now after seeing people's answers on here, except about a few questions I know I got wrong :frown:

Btw did anyone get 3.03 million vehicles or something for one of the first questions?
Original post by anthonyfl
No I got that one, I'm talking about the (2)^n = 1/64 one, something like that?


So was the question:

2n=1642^n = \frac{1}{64}, find the value for n?

If so, it'd be -6. But I get the feeling that's not what it asked. :tongue:
Reply 74
Original post by mrsnicket
I feel much better about paper 1 now after seeing people's answers on here, except about a few questions I know I got wrong :frown:

Btw did anyone get 3.03 million vehicles or something for one of the first questions?


yeh, thats what i got :smile:
Reply 75
Hey can anyone upload the paper? I'd be happy to solve and post the solutions?
Reply 76
Original post by michaelroy
Hey can anyone upload the paper? I'd be happy to solve and post the solutions?


Could the person uploading, please upload paper 2.

Thanks
Original post by regalrose
Also (n/2)x(n/2+1) for the second last one. The last one I got 2550 = 50x51


For the 50x51 question did you remember to take off 20 from your final answer since the question was "10+12+....+100" instead of "2+4+....+100"?
Reply 78
Original post by kierandoran
For the 50x51 question did you remember to take off 20 from your final answer since the question was "10+12+....+100" instead of "2+4+....+100"?


:eek: :shot: :doh:
Reply 79
Original post by kierandoran
For the 50x51 question did you remember to take off 20 from your final answer since the question was "10+12+....+100" instead of "2+4+....+100"?


Well that puts a downer on my day :unimpressed:

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