maths advanced

  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. Invisible$_$

    Help with statistics problem

    Hello, can someone please help me with questions (c)(i) and (ii)?
  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. T

    Need 3D trig question help

    The diagram shows a rectangular pyramid. X and Y are the midpoints of AD and BC respectively and T is directly above Z. TX = 15cm, TY = 20cm, AB = 25cm and BC = 10cm. a) Show that ∠XTY = 90°. b) Using Pythagoras’ theorem, show that TZ = 12 cm.
  5. 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
  6. P

    Any copyright issues for uploading past Year 11 Prelim Maths Advaced + Extension 1 Papers for new syllabus?

    Hi all, As I've completed Maths Advanced/Extension 1 in Year 11 2019 with the brand new syllabus introduced for 2020 HSC students, I would like to upload some past papers that may be of use for current Year 11 2020 students who require past exam resources for the new syllabus. However, I am...
  7. O

    Should I drop Maths Advanced of CAFS?

    My school had really bad subject lines, so I am definite on dropping a subject when the Year 12 course begins. I don't know whether I should drop Maths Advanced or CAFS. I am doing: English Advanced, English Extension, Maths Advanced. Korean Continuers, Visual Art, CAFS, and Business Studies...
  8. 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...
  9. R

    Stuck with my subjects

    Hey everyone, I’m currently in Year 11 doing Advanced Maths, bio, Chem, Hospitality, Modern History and Advanved English. I’ve been struggling with advanced maths the whole year and somehow no matter how much study I put in nothing positive seems to come out of it as the result stays the same...