math

  1. Modern4DaBois

    Help Pls with 4U Problem ASAP

    Hello, could anyone pls help me do part (c)? I've done a and b and kinda mind-blanked for c.
  2. V

    MATH ADV QUESTION HELP

    Hi we just started probability in advance math, (yh its pretty late ik) I had a question that popped up in the cambridge book.. For events and from a sample space, P(A|B) = 3/4 and P(B) = 1/3 a) Calculate P(AnB) b) Calculate P(A'nB) where A' denotes the complement of A c) If events A and B are...
  3. cherrykku

    IS IT EVEN WORTH STUDYING? (for math)

    So I take 12 units and I'm getting a band 6 in every subject EXCEPT for math (advanced) which is a solid low band 5. Is it even worth it to go all out for the math exam? Even if I did manage to get a band 6 in the external I'm pretty sure it'd still average out into a band 5 and not count...
  4. P

    [Proficiency Education] Hiring tutors for all subjects!

    At Proficiency Education we are looking for keen individuals with a dedication to teaching and learning to join our amazing team. If you want to become a part of a wonderful and dynamic community where you can challenge yourself to grow then, ProEd is the place for you. We are open to tutors for...
  5. I

    Maths help??

    I’m so confused anyone pls explain how to answer this
  6. P

    *PLS HELP!* Roots & Coefficients in Quadratic Equations

    I'm not sure how to solve this one problem: "If α and β are roots of the equations x²+mx+n=0, find the roots of nx²+(2n-m²)x+n=0 in terms of α and β." I would really appreciate it if someone could show me how to do it. I'm like 9 weeks behind on work lol. Thanks in advance! :D
  7. J

    Going into math EXT 2

    Hi all, I'm planning on doing mathematics extension 2 next term, im just wondering what I can do now to prepare for it, or even just some tips to survive the course. Regards
  8. A

    I can answer textbook questions but not exam ones

    Hi! so I've decided recently to work on my math more and I thought I was improving but a recent topic test proved me wrong. While I can answer the questions within the textbook, I wasn't able to do so on my test. The questions seemed more confusing and I ended up getting completely lost. How...
  9. G

    prelim content in HSC - maths

    I've been told that up to 30% of prelim content in maths is tested in HSC, but I was wondering if that 30% is kind of recovered/more so a foundation to concepts taught in year 12 or if prelim content is quite literally in the HSC?
  10. S

    help with a maths question

    Let P(x) = (x+1)(x-3)Q(x) + a(x+1) + b, where Q(x) is a polynomial and a and b are real numbers When P(x) is divisible by (x+1) the remainder is -11. When P(x) is divisible by (x-3) the remainder is 1. i) What is the value of b? ii) What is the remainder when P(x) is divided by (x+1)(x-3)...
  11. D

    Need help on a math exam question

    I would be grateful for any ideas on this question :) , I know the use of the difference between cubes is used but how do you proceed from there?
  12. B

    Top HSC Mathematics-Physics Private Tuition in Sydney

    Hi! I am offering 1-to-1 (and possibly small group) tuition in: -HSC and Year 11 Mathematics (Advanced, Extension 1 and 2) and Physics. Math and Science subjects for younger years. -Other high-school level Math and Physics e.g. A-levels, IB, Olympiads. -University level Math and Physics...
  13. D

    Need help with question.

    Any ideas? Solve cos^2theta - 5cos theta * sin theta + 6sin^2theta =0 between -pi ≤ theta ≤ pi
  14. T

    Should I drop tutoring? I really need some advice!

    Hiya, I'm in year 11 and I'm kind of screwed. I'm doing extension 1 maths, advanced English, chemistry, biology, economics and modern history. So far, I'm not doing well. I'm atrocious with time management, and I procrastinate like there's no tomorrow when I'm stressed. I attend tutoring for...
  15. S

    Cheat sheet tips

    My Maths extension 1 exam allows us to bring a cheat sheet with us. Is there any way I can exploit this advantage to make the test even easier for me or should i just write formulas etc?
  16. G

    Maths Mistakes

    I was wondering what is the best way to get rid of silly mistakes in maths, is it just repetition or is there a better way?
  17. W

    How do I catch up in maths?

    Hi, So I'm in year 12 (well in a week) but I'm so stressed about my math skills. 2020 has personally been a very tough year and probably the most difficult times I've encountered. As a result, I was very mentally and emotionally strained and found no motivation to study. Now, I'm trying to get...
  18. isaezra

    what subjects to pick, and what courses to apply for, to become a doctor without wasting your money and time

    TL;DR If you want to go into medicine; 1. take chemistry, and advanced math or higher 2. sit the UCAT 3. apply for early entry into the "Bachelors of Medicine/Bachelor of Surgery" (MBBS) at JCU and Curtin 4. if you don't get in, apply for regular UAC entry into any MBBS 5. if you don't get in...
  19. M

    Balanced chemical equation help

    Hi! I need help balancing an equation for my textbook questions and I have tried everything and I can’t seem to work it out. ‘Why is the following equation not balanced? Find the errors and correct them’ 3Co3+ + 2HPO42- Co3(PO4)2 + 2H+ thank you!
  20. M

    Solution stoichiometry help

    I have a question I need help with and I’m not sure on how to actually work it out. The question is ‘solutions A and B are labelled ‘0.15 M CaCl2’ and ‘0.25 M CaCl2’ respectively. Both solutions contain the same amount of CaCl2. If solution A has a volume of 50mL, what is the volume of solution...
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