stupidpersonlol
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- Nov 6, 2020
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- HSC
- 2021
omg theres hope i pass!!
dont jinx it man but at this rate all of q14 will be perms and combscant wait for the 3u exam to be filled with perms and combs
babes im screwed for ext 1 as well...if its like todaydont jinx it man but at this rate all of q14 will be perms and combs
As did I, but I'd like to check it againI got 0.066
PLEASE NOView attachment 33772
I don't know if this was mentioned previously...but as the question asks for height above ground level, shouldn't the answer be 445m (so 345+100 above ground level)?
I think because the equation already has the 100 in it, you don't need to add the 100.View attachment 33772
I don't know if this was mentioned previously...but as the question asks for height above ground level, shouldn't the answer be 445m (so 345+100 above ground level)?
No. The +100 in the equation y(t) accounts for that. But this question is fk'd up for advanced honestly, it's more of an ext1 questionView attachment 33772
I don't know if this was mentioned previously...but as the question asks for height above ground level, shouldn't the answer be 445m (so 345+100 above ground level)?
yea projectile motion came in handyNo. The +100 in the equation y(t) accounts for that. But this question is fk'd up for advanced honestly, it's more of an ext1 question
sir, if you don't mind. Can you post your solutions to this problem(q33d)?As did I, but I'd like to check it again
I think that's the long way to do it... Since it's a concave down parabola, it will only have one maximum point which is the vertex..what wait, i just differentiated it to find max turning point lol
Ah yes makes sense when I look at the eqn lol. That's a sneaky one I guessNo. The +100 in the equation y(t) accounts for that. But this question is fk'd up for advanced honestly, it's more of an ext1 question
100% correct, 100 is already accounted for as well.I think that's the long way to do it... Since it's a concave down parabola, it will only have one maximum point which is the vertex..
ah, ok. I was more so referring to the entirety of q26. If i hadn't doen extension 1, i would never make the connection to substiute y(t)= 0 for 26b. This is very similar to ext1 projectile motion questions, so yeahoh i didnt see that, i was more so wondering why u thought it was difficult for adv
sir, if you don't mind. Can you post your solutions to this problem(q33d)?
Thanks for this
...using the -score of +2 (above the middle 95%) to mean top 2.5% and that 80% of them solve in under 2 h
Honest estimation, a 77-81 raw will amount to an 89-92 scaled this year. Last year the examination wasn't too bad, with the exception of the cricket question (which wasn't even bad at all). 2021, comparatively, will have a greater spread of results and a smaller percentage of those in the top 1-0.001%. The raw mean mark will be a lot lower.Raw mean mark for last year's exam was 38.1/50 and scaled was 28.4/50. I wonder how our cohort's stats will look like .
I find the second part is extremely questionable. I mean can you remove a factor of 5 from the question?View attachment 33772
I don't know if this was mentioned previously...but as the question asks for height above ground level, shouldn't the answer be 445m (so 345+100 above ground level)?
Q25's solution is very messed up. I mean what were they thinking.could you check q25?