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  1. O

    ranking question

    Hi guys im just wondering if my rank will plummet after my recent test worth 25%?? my ranking in the half yearly report was 6/85 -92% i will probs get around =75% for this test....silly mistakes... so do you think my ranking will drop down a lot?? and can i still get my mark up in the 40%...
  2. O

    multiple choice help

    thanks!
  3. O

    multiple choice help

    ah k thanks and also which one isnt an economic cost of income inequality? 1. a fall in the level of utility or 2.an increase in labour force mobility or 3.an increase in expenditure on conspicious consumption or 4. a fall in total consumption
  4. O

    multiple choice help

    this is from 2011 hsc http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2011exams/pdf_doc/2011-hsc-exam-economics.pdf i need help on question 20 the answer is C do you use the negative externalities graph ( how private supply curve is lower than social supply curve) to figure it out or..??
  5. O

    multiplier

    ah k thanks
  6. O

    multiplier

    hi can someone explain the multiplier effect and how any increase in aggregate demand will lead to an increase in GDP?
  7. O

    interest rates

    hi can someone explain why the reserve bank by purchasing securities will put pressure on the market to decrease interest rates? and also do you have to pay admin fees as a private company to apply to become public company?
  8. O

    business textbook question

    have business half yearlies coming up in 2 weeks time on marketing would it better just studying and doing questions off the business studies 'dot point' book?? because some of the content in those questions, we havnt even done at school??
  9. O

    inverse trig graphs

    yeah i think you have to use calculus for the first graph, will this type of graph ( the first one) be in a typical 3 Unit test or not??
  10. O

    inverse trig graphs

    i have a few questions for anyone who has time sketch y=sin^-1(1/1+x^2) y=sin(sin^-1 (x) ) - do the sin and inverse sin cancel out to become y=x??
  11. O

    parametric locus

    ooooooo lol . thanks
  12. O

    parametric locus

    hey how did you establish pq=-1?
  13. O

    parametric locus

    hi i have 2 problems for anyone who has time 1. Tangents to the parabola x^2=4ay drawn from points P(2ap,ap^2) and Q(2aq,aq^2) intersect at right angles at point R. Find the locus of a) point R b) The mid point of PQ 2.Find the equation of the locus of point R that is the intersection of the...
  14. O

    parametric equation help

    find the cartesian equation of the curve where the parametric equations are: x=cost2t y=cost (eliminate the 't' in other words)
  15. O

    business report

    lol, can someone set up how a business report format should be set out? and is it better to use business report when answering essay-like question
  16. O

    Products as sums or differences

    had the same problem oooooo a lot clearer now thanks!!!!!!
  17. O

    Products as sums or differences

    Can someone explain the mathmatics extension bands?? like e4 , e3 is band 5 or 6 etc..? lol
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