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  1. jungly krinsky

    A level Biology: Post your doubts here!

    Hi, I have some questions to ask about the AS past papers for biology and specifically where they seem to contradict the book i am working from ( which is the biology coursebook by Mary Jones Richard Fosbery Jennifer Gregory and Dennis Taylor. ) firstly in this book the antibiotic penicillin...
  2. jungly krinsky

    Mathematics: Post your doubts here!

    Thank you for explaining. I think I've got it now.
  3. jungly krinsky

    Mathematics: Post your doubts here!

    please help with question 8 ii http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s12_qp_11.pdf http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s12_ms_11.pdf Don't realy...
  4. jungly krinsky

    Mathematics: Post your doubts here!

    Thanks a lot.
  5. jungly krinsky

    Mathematics: Post your doubts here!

    please help with question 7 (ii) I can put it into the form -In(100-x) = 0.02t-In(k) but I can not get K to equal 95 like they appear to do in the mark scheme. http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s03_qp_3.pdf
  6. jungly krinsky

    Alternative to practical measurments

    I find when ever I measure length in the on an alternative to practice exam I print out from xtremepapers my measurements are always out by about 3mm. Is this because this site rescales the papers before putting them up on the net?
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