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  1. P

    Intro

    Nope, never heard of it actually
  2. P

    Intro

    Hello! I'm not sure about what is going on in terms of what the session is, but I am mainly here for revision with the papers you've already collected
  3. P

    Intro

    Y13 doing Maths, FM and Physics :)
  4. P

    Any math pro can solve this???

    Doesn't this method just ignore the -23? You can substitute known y and x values and rearrange to get the two equations: 27=a*3^n and 243=a*9^n ( simplifies to 243=a*3^2n as 9=3^2) Divide second equation by first to get 9=3^n and so n=2. Substitute n back into 27=a*3^2 to find that a=3.
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