# MylakIB

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• Gender
Male
• Exams
May 2013
• Country
Poland

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1. ## MAY13 BIO SL P1+2?

It was for sure autosomal dominant
2. ## THAT experience which was HL Physics Paper 2 TZ2

From what I remember I got something like that ;P
3. ## MAY13 Maths HL TZ2 Paper 2 Discussion

But actually, Maths was (and is) the subject I am really confident of. I'm really scared of Polish since my results are always fluctuating, and geography (didnt start studying)
4. ## MAY13 Maths HL TZ2 Paper 2 Discussion

Up to now, nobody has pointed me any fault, but I always lose 1 or 2 points for some unnecessary things. I really liked the questions on P2 (they seemed difficult, but as u started doing it, they turned out to be eaaasy). (AND I DIDNT DO ANY STUPID MISTAKES LIKE IN P1 where I messed up the first question with stupid intergal lol) EDIT: so i hope to get a 7, since it's vital for fulfilling my university offer...
5. ## MAY13 Maths HL TZ2 Paper 2 Discussion

Well, they are notorious of forgetting about pluses and minuses, and we can't do anything. I think that theyll accept both solutions...
6. ## MAY13 Maths HL TZ2 Paper 2 Discussion

Well, the equation has a solution +-sqrt indeed, but later on, they wanted a specific solution for y>0 (it was y=1 or 2 i dont remember), and the whole thing was then about working on the region above the y axis (because of this fact)
7. ## MAY13 Maths HL P1 TZ2 Discussion

I'm sure that it was 9.5, because they wanted to see whether we can figure out that we need to take square root of this in order to calculate the range... Edit: they asked about number of cats (out of 10000) that have lifespan smaller than 10 yrs.
8. ## MAY13 Maths HL TZ2 Paper 2 Discussion

Guys, was variance 9.5 or 9.52 in that question with cats?
9. ## MAY13 Maths HL P1 TZ2 Discussion

It was for sure 9.5 ( so that the range was 13.5 plus minus sqrt 9.5) (it was 9.5 years^2)
10. ## MAY13 Maths HL P1 TZ2 Discussion

Hah That is the question which i was mega ambigious about. I hope you can answer my amibguity, because then i might get 120/120 marks, and I would feel ****ing good. Q.10: Acceleration was given to be (60-v)/40, and initially the particle was at rest so at t=0, v=0. We were supposed to find the value of v at t=30. dv/dt=(60-v)/40 (60-v)dv/dt=1/40 Integrating both sides would give -ln|60-v|=t/40+c so at t=0, v=0 gives c=-ln60. We have ln|60-v|=ln60-t/40 so at t=30 ln|60-v|=ln60-3/4 |60-v|=e^(ln60-3/4) This gives v=31.7 or v=88.3 because of the absolute value sign. Now this really confused m
11. ## MAY13 Physics HL Paper 3

I did EM Waves and Medical Physics - the only hard thing was noticing that there is a fourth sectipn (I4) in the exam (after a blank page) - my friend did not notice that LOL. My problem was I didnt really know how to formulate the answers (although I knew why the things are and why they are like that) for example in the question with one beam of X ray and few minor in dosimetry in Medical
12. ## MAY13 Maths HL P1 TZ2 Discussion

That is the question which i was mega ambigious about. I hope you can answer my amibguity, because then i might get 120/120 marks, and I would feel ****ing good. Q.10: Acceleration was given to be (60-v)/40, and initially the particle was at rest so at t=0, v=0. We were supposed to find the value of v at t=30. dv/dt=(60-v)/40 (60-v)dv/dt=1/40 Integrating both sides would give -ln|60-v|=t/40+c so at t=0, v=0 gives c=-ln60. We have ln|60-v|=ln60-t/40 so at t=30 ln|60-v|=ln60-3/4 |60-v|=e^(ln60-3/4) This gives v=31.7 or v=88.3 because of the absolute value sign. Now this really confused me durin
13. ## HL Mathematics really that hard?

HL Maths is not that bad - I'm from Poland, and in my group of 20 people on MHL there are about five 7s... I get over 90% on mocks without studying because I had nearly all this material in my middle school (I don't know how it in other countries)
14. ## Where should I start?

I guess the best way to study is to do questions from past papers and look for maths theory in regular (non-ib) books, because they are a lot better (imho)
15. ## Hardest subject choice possible

Oh, come on ppl! Maths HL is easy lmao o.O
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