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maths

  1. M

    Perms and Coms question

    Hi I need help with a question from the Cambridge 2u textbook (EX1C 13) A piece of paper 0.01mm thick is folded successively 100 times. How thick is it now? Most of the questions were alright but this one really stumped me. Any help would be great.
  2. S

    Selling Textbooks and Extensive Notes For Std English, Biology, Std Maths, Food Technology and Drama

    Hey everyone, I have a bunch of textbooks and other resources that need to get rid off. Most of my notes are electronic and some are physical textbooks. Here's what I want to sell: English Standard Common Module - The Crucible I have self-made notes that helped me get full marks for my essay...
  3. Y

    Quick Maths Q.

    Hello, hello! I'll cut right to it. I'm confused why the answer is 16 - and feel especially stupid because you get that from 249 - 233, however i don't see the connection. Can someone explain this to me? The sum of 50 terms of an arithmetic series is 249 and the sum of 49 terms of the...
  4. thetestdude

    St George Advanced Tutoring and Coaching - Physical and Online Classes - $25/hour - English, Maths, Physics, Chem, Bio, Business, languages and more

    Hi everyone, This post aims to help anyone that is looking for a high quality tutoring service that is affordable at the same time. I can highly recommend St George Advanced Tutoring and Coaching. I completed my HSC in 2019 and I was able to achieve band 6's in Physics (92), Mathematics (94)...
  5. TamzidZ

    Kinda wanna sit a crisp hand written 1900s HSC paper

    Ya know a hand written paper feels like some love and affection was put into it. Only me?
  6. T

    basic trig question

    Hi Guys, In the screenshot I've attached (from my textbook), how is that 100 degree angle as well as that -40, 320 degree angle possible? I would have thought they would be around 350 and 100 respectively? Sorry if I'm missing something really obvious
  7. M

    Statistics (urgent)

    If anyone can help tell me how to answer this question, or help guide me on how I can answer this and check my answers, it is much appreciated. Carpal tunnel syndrome is a painful wrist condition that can be treated with surgery or less invasively with wrist splints. In a study of 180 patients...
  8. M

    Statistics and probability help

    I was wondering if someone could help me with this question? this one has really confused me, and unfortunately is worth 14 marks. Q: Wildlife biologists inspect 157 deer taken by hunters and find 33 of them carrying ticks that test positive for lyme disease. Previous data indicates that the...
  9. K

    1ST IN 3U MATHS NSW STATE RANK | 7TH IN 4U MATHS | 3RD IN PHYS | 99.95 ATAR | TUTOR

    Hi! I’m Kim, I graduated James Ruse in 2019 and am studying a Bachelor of Advanced Science/ Doctorate of Medicine at the University of Sydney. I am quite an experienced tutor, having taught an Earth Science Olympiad training class in 2018 aswell as at the Earth Science Olympiad Summer School in...
  10. G

    Actuary vs Optometry

    Hey all, I'm choosing between Actuarial Studies/IT at Macquarie and Optometry at Geelong/Queensland (I received both offers.) I live in Sydney and have an ATAR of 95.35. I love maths and science/physics so both courses really appeal to me. I've given this a lot of thought throughout the year and...
  11. periodmami

    Modern History or Maths Standard 2?

    Wow, what a conflicting situation I'm in. I'm going into year 11 this year, and all of this world war 3 chat has made me realise how much I love studying war and understanding all that is 'Modern history'. I'm super interested in the way the world operates, and I want to learn all about it. On...
  12. D

    We predict students HSC marks from as early as Year 10 using Computer Algorithms - Hiring tutors for Mathematics

    Hi everyone, My name is Dr. Andrew Phillip, and I am a lecturer in the School of Mathematics & Statistics at the University of Sydney. Since 2013, my research has been about predicting the future price of Bitcoin. I came up with a statistical framework which is able to predict future volatility...
  13. P

    99.85 ATAR Medical Student from UNSW offering HSC and Preliminary Maths Tuition (2U, 3U, 4U)

    Qualifications Hi, I’m Prag and I’m a maths tutor based in the Hills area. I graduated from Baulkham Hills High School and am currently a second year medical student at the University of New South Wales. I took physics, chemistry, 4U maths and English for my HSC in 2017 with marks as below: Ext...
  14. B

    Standard Maths Course now on Youtube

    Hi, the complete year 11 Standard Maths Course is now on YouTube. The link to the playlist is below. If you read the description on each video you will also find links to theory booklets. https://www.youtube.com/playlist?list=PL2uwLfP-xViVQhkvV0gMpzs5XySep9_xW
  15. G

    Maths Advanced Cambridge book

    Hey guys! My school has been working through the Cambridge textbook for advanced math which has a lot of difficult 'Challenge Questions' towards the end of the exercise. I was just wondering if those are worthwhile to attempt for HSC practice (like are they test style questions) or are they just...
  16. J

    Got an average mark in math and need a band 6

    hi!!! so i’m in year 11 but i’m doing the advanced math course this year and i just received my second assessment mark back it’s it’s really disappointing. i’m stressing because i NEED a band 6 and idk if i can get that anymore. my marks: first assessment: (20%) 89% - ranked either 9th or 11th...
  17. U

    Conflict in General Maths HSC paper 2018!?!

    so I used some trial and error to answer this question 27b 2018 General Maths my answer was x = -2 and y = 3 though HSC answer was different, mine works would they accept that
  18. C

    Can anyone help me?

    Can anyone help me? The first digit of a 6-digit number is 1. This digit 1 is now moved from the first digit position to the end, so it becomes the last digit. The new 6-digit number is now 3 times larger than the original number. What are the last three digits of the original number? So far I...
  19. C

    What should I choose?

    I'm in year ten and these are the subjects I know I will be choosing: English Adv Maths adv Legal studies Modern history Italian cont Now for the last two units I'm having a toss up between these three subjects: Studies of religion 2 Ancient history Business studies Which one should I...
  20. P

    PLS HELp!!!! HOW TO STUDY FOR TRIALS

    Guys help, I have trials in around 2 weeks and I'm so stressed because I feel like I am not prepared at all especially for economics and maths adv. I am wondering if anyone has any advice in terms of good ways to study and how to study content heavy subjects like economics and whether it's worth...
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