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  1. A

    Another minima maxima question. Help!

    Can anyone tell me the surface area formula for a square based prism? Also, please help me solve these questions. 13. A rectangular prism with a square base is to have a surface area of 250 cm2. a) Show that the volume is given by V = (125x - x3)/2 b) Find the dimensions that will give the max...
  2. A

    Calculus

    I see. Thanks anyway. If you don't mind, can you help me with my other question? It's the one with the title "Calculus maxima minima help". PLEASE!
  3. A

    Mathematics Test Help

    What is Phoenix?
  4. A

    Calculus

    It does not make sense. The answers are 1.68cm and 1.32cm. I still can't get them. Help?
  5. A

    Calculus

    Q19. A 3m piece of wire is cut into two pieces and bent around to form a square and a circle. Find the size of the two lengths, correct to 2 decimal places, that will make the total area of the square and circle a minimum. Please show your working. Thanks!
  7. A

    Calculus maxima minima help

    Math in focus HSC book 2.10 Q22. A park is to have a dog walking enclosure in the shape of a rectangle with a semi circle at the end, like so, IIIIIID, and a perimeter of 1200m. X is the length of the rectangle and Y is the width of the rectangle. Find the dimensions X and Y(to nearest meter)...
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    96+ atar

    So basically, the first HSC assessment isn't going to have a big impact on final atar? Is that right?
  9. A

    Improve ranking

    So guys, the first assessment isn't going to have a big impact on atar, provided if you aced all your other internal exams? Is that right?
  10. A

    Improve ranking

    Can ranking be improved? E.g if a student messed up his first HSC assessment, but aced his half-yearlies, trials and HSC, would his rank be higher?
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    96+ atar

    May I know what ranks I need to get for a 96+ atar?
  13. A

    96+ atar

    Hi guys, I'm currently in year 12 and I just had my first HSC assessment. I got 90+ for English and Advanced Maths, but 70-80s for Bio, Chem and Physics. So I was just wondering, if I aced my half yearlies, trials and the real HSC, is it still possible to get 96+ atar? Btw, my school rank...
  14. A

    help me solve this question(explain)

    Solve: 16^x-12*2^2x=-32
  15. A

    ESL text of own choosing

    Hi guys, What did you pick, or what are you picking for your text of own choosing for ESL?
  16. A

    Physics jacaranda 1 3rd edition

    Anyone has it? Email me at keldor5391@gmail.com I really need it.
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