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  1. U

    HELP! what are the effects that the bop and exchange rate have on eachother

    Another one is increased servicing costs in terms of rent, profits, dividends and interest if exchange rates depreciate, affecting the net primary income account and worsening the CAD. A change in the exchange rate may also affect the ease for investors to come and invest in aus, affecting the...
  2. U

    Does this mean that Year 11 marks will count as internals for our HSC?

    yes but for schools prelim still matters and schools still need ways to be able to effectively assess their yr11 cohort. NESA recently allowed principals to make decisions about assessments regarding yr12, and now have extended this power to yr11 "in line with the decision communicated last week...
  3. U

    Challenging (?) Proof Question

    u can prove by strong induction, n=0 is obvs true, given n=1, then M^{k + 1} + \cfrac{1}{M^{k + 1}} = (M^k + \cfrac{1}{M^k})(M + \cfrac{1}{M}) - (M^{k - 1} + \cfrac{1}{M^{k - 1}}) is integer
  4. U

    Does this mean that Year 11 marks will count as internals for our HSC?

    i think this just applies to yr 11 students rn
  5. U

    How to solve this?

    1. if (x-1) divides the polynomial, and it divides (x^2-1)Q(x), it must divide the remainder (kx+2). Thus you can figure out k. Then, using this, divide the polynomial by (x+1). Since (x+1) already divides (x^2-1)Q(x), the remainder is found when (kx+2) is divided by (x+1) 2. Using the...
  6. U

    English

    is it a motif? Also you could talk about associations and connotations of the imagery.
  7. U

    Is RoSA Compulsory if You're Doing HSC Anyway?

    My bad i didn't read your post properly. Just did some research, https://educationstandards.nsw.edu.au/wps/portal/nesa/11-12/hsc/subject-selection "satisfactorily complete Years 9 and 10 or gain other qualifications that satisfy NESA" I'm not sure what this entails, but I'd say you might risk...
  8. U

    Is RoSA Compulsory if You're Doing HSC Anyway?

    To the best of my knowledge, you don't. The RoSA just lists your courses and grades for stage 5-6, so kind useless once u get hsc.
  9. U

    COVID-19 and school closures

    ye its a bit anxious trying to figure out what my hsc year is gonna be like at this rate.
  10. U

    COVID-19 and school closures

    Can they just close schools before my assessments plz
  11. U

    Vectors

    Ye i found some here https://www.examsolutions.net/tutorials/exam-questions-vectors/
  12. U

    Vectors

    Also vectors are a part of the British A-Levels and the Victorian VCE, I've found some A-Levels qs on equations of lines/planes and they're quite similar to 4u textbook qs so they might be handy.
  13. U

    Year 11 Permutations (arrangements in a circle)

    Its 4!, because the five rotations of the table count as one arrangement.
  14. U

    Urgent. Need Help asap

    Molybdenum 99 isn't naturally occurring, so it doesn't have a relative abundance
  15. U

    past hsc exam papers?

    try the resources section on this website or the thsc website https://thsc.zaxu.xyz/
  16. U

    Dropping Extension English?

    A 97-98 atar is possible with any subjects... MX2, visual art, whatever. Don't keep a subject for scaling purposes. If you feel you won't perform well in ext eng or the content is thoroughly unenjoyable, i'd say drop it. 14 units is alot, and basically unsustainable in yr12. Then again, its...
  17. U

    Failed an exam. Help.

    Ye your percentage doesn't rlly matter: ur internals mark will be moderated based on exam performance. What's important though, is everyone else hitting very high marks? How do you sit in your cohort? A band 6 is always possible, especially if you do well in the final exam.
  18. U

    math question help

    1. Let A be a variable point on the x axis, (x,0). Notice for any A, there can only be one B for which AB passes through (5,3). Thus we don't really have to worry about B for now. Then find an equation for area of triangle AOB, and its min using calculus. Using ur min value of x, find A and B...
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