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I agree.

Guys this is random but could you help me with this, I think I went okay for 3U but I don't know if i did well enough for it to count. So could you explain what does the BOS take into account when selecting your best 10 units?

Guys this is random but could you help me with this, I think I went okay for 3U but I don't know if i did well enough for it to count. So could you explain what does the BOS take into account when selecting your best 10 units?

OMG DAM IT, how could I have not seen the other side T_T and thanks for your help

Found the paper easier than past papers 2011, 2010 etc however for question 14 I couldn't prove that they triangles were congruent! >:O I had the hypotenuse, side but I couldn't prove the 90 degree angle in triangle MXS. Could someone help me with that? Also had trouble with b iii, my angles...

let inverse cos (2/3) = theta draw up the triangle and find the other side which is root(5) therefore it'll be sin(2theta -> since theta equals inverse of cos etc). Expand it into 2sinthetacostheta and then use the dimensions of the triangle, sub it in and you should get 2(root5/3)(2/3) = 4 root5/ 9

shit, i got like 21 something..

Could someone upload all the answers for question 14?

If you move the 1/4 across you get a negative 1/4 and you can't root negatives :S

It would be awesome if someone could upload their worked solutions of Q16 C!!

Explain how you did it!! >:O

I did the same thing!! I don't know if i did Ci, the correct way though. Could you explain what you did?

Could someone explain how to do C i?

Yes it is but it doesn't necessarily mean that there's never going to be a mistake. I've looked through my notes and these mistakes can be caused by the polymerase enzymes, they could attach the wrong nucleotide. Just keep in mind that it's not common for this is happen and fortunately they're...

It can't be D because the cream biscuits picked by the students represent organisms that have unfavourable characteristics within a population hence it's not a limitation of the investigation.

It could be a spontaneous or random mutation caused by idk mutagens.

Easiest Bio exam ever in the history of the HSC. Although I do have doubts with answering the question where we had to describe how we determined the size of the RBC, skimmed over it whilst studying argh. The rest were so straight forward and easy. :)

I think that's fine I mean there are all sorts of WBC with varying sizes so there's a range of answers for that question.

I did the same thing too but I didn't add anything about the disadvantages since the question only told you to demonstrate how technologies..etc

What was it out of 3? I know you'll get a mark for the scales and labelling them so I'm not sure :S