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OCR (not MEI) C1 - Wednesday 13th May 2015 Watch

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    (Original post by Abbie2511)
    It had to be in the form 5 to the power something, I got 5^(9/2)
    Yeah that's what I got, at least I got something right
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    (Original post by naomi288)
    I got 5^4.5 for the last indices question


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    that's right
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    (Original post by AstroNandos)
    I got that for whatever question or was




    I got something like -3/16, I think I did it wrong
    Yeah well I got -16/3

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    (Original post by blinin7)
    What expansion did people get for simultaneous equations. The rest was a breeze however I spent a good 30 min + solving :

    3x^2 + 20x - 22 = 0

    As y=-2x-5 so I just substituted. I think I got it completely wrong but I tried 5 different ways and came to the same expansion which I couldn't simplify...

    Really hope grade boundaries are not higher than last year :/
    Yea i spent ages on it!!!!
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    (Original post by naomi288)
    I got 5^4.5 for the last indices question


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    same
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    I got -1/48👀👀
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    (Original post by iloverobkardash)
    Also, answers for the differentiate X^(1/3) where X=8 or something?
    was that find the gradient of x^{1/3} when x=8?

    I got -1/48 for that
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    (Original post by TCO)
    Yeah well I got -16/3

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    I got - 1/48 :'(
    And for the perpendicular through the midpoint I got 6x-8y-29 = 0
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    (Original post by Dentist214)
    Great, lost 5 marks!!!! I got 11, no wonder I couldn't get the stationary point, I've done so bad
    I got 11 too and it worked for the stationary point aswell. I'm not sure if it was right or wrong. The equation worked to get 4 again for the point and the unknown one too
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    What was the simultaneous equation answer?
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    (Original post by yazmin123)
    what did you get for the simultaneous equations??
    x=2
    y=1

    x=14/3
    y=-13/3
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    The last indices question was 5^9/2 for those asking and the differentiation one was -1/48.
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    (Original post by exoticmedgirl_2017)
    6x+4y-29?? Something like that... Might be the wrong question..? Sorry...
    I put 6x-8y-29 I think
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    (Original post by TCO)
    Yeah well I got -16/3

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    Got -1/48 for this I think
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    (Original post by HecTic_H)
    I got - 1/48 :'(
    And for the perpendicular through the midpoint I got 6x-8y-29 = 0
    I got both of those answers, im sure they are right.
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    (Original post by lily9666768)
    yeah you just need 240 ums overall. you could get a C and two A's and still get an A
    That gives me hope, would they need to be high A's in c2 and s1 like 65/72? Obviously depending on grade boundaries but never seen them higher than that
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    (Original post by AstroNandos)
    I got that for whatever question or was




    I got something like -3/16, I think I did it wrong
    I got what you got
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    (Original post by blinin7)
    What expansion did people get for simultaneous equations. The rest was a breeze however I spent a good 30 min + solving :

    3x^2 + 20x - 22 = 0

    As y=-2x-5 so I just substituted. I think I got it completely wrong but I tried 5 different ways and came to the same expansion which I couldn't simplify...

    Really hope grade boundaries are not higher than last year :/
    i think i got the expansion 3x^2 - 20x + 28 and it factorised
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    Grade boundary expectations?

    Was an easy paper but subject to a fair few mistakes

    My estimate is around 65/66, same as last year
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    Were the simultaneous equations:

    2x+y=5 AND x^2-y^2=3

    OR

    2x+y=5 AND x^2+y^2=3
 
 
 
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