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  1. J

    Need help!

    Hey, i missed the prac at school where we had to model accomodation using rays of light and was wondering if anyone had a good write up for it. Thanks
  2. J

    Confused

    can sum1 please answer this to tell me what they got. I am convinced that the answers are wrong and that my working is right. When differentiating 4x(cubed) - 140x(squared) + 1000x you get 12x(squared) - 280x + 1000 please solve this for x now so: 0=12x(squared) - 280x + 1000
  3. J

    Past HSC Question...Help!

    Hey all, im doing a past question, but it seems so broad. Can anyone help me as to what you would write in an answer. It's worth 15 marks and there is 2 pages to write on: "Evaluate how both rates of skill acquisition and the learning environment affect physical performance" Thanks
  4. J

    Techniques in BNW

    hey im trying to do a summary for BNW, but can't think of any techniques used. Can anyone help
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