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Your ranks are actually good. You're overthinking and stressing for no reason. Stress is the downfall of a lot of bright students, so don't let it get it you. Hard work is important, but it's not everything. If person A works harder than person B, it doesn't mean that person B is going to get a...

Q8 is another application of the limiting sum of a series. So here is what we have, the ball is being dropped from a height of 8 meters, when it hits the ground, and bounces back up, what do you think would happen? well it wouldn't obviously bounce back to my hand, its height from where it...

For Q7, the first question that we should ask is: What sort of series am I dealing with ? well it's an AP because the common difference is obviously 7 ( Refer to my first answer if you need more explanation in regards to determining the nature of the progression in a series) Now the second...

T_n=a+(n-1)\times d Now before I find T_n , I want you to note that -log_a(3)=-1\times (log_a(3)) and thats the same as log_a(\frac{1}{3}) using the log rules. Now to find T_n we just use the formula, T_n= log_a(54)+(n-1)\times -log_a(3) Expanding this out, T_n=...

Yeah, I believe it’s a typo. Don’t think it refers to the instantaneous speed of the projectile, as that will unnecessarily complicate things. So does that solve the problem, or do you still want the solution ?

People read and interpret texts differently, if your interpretation is supported by solid textual evidence and presented in a logical, coherent way that answers the question with all its aspects and refers to the module’s intent, then you’re fine. Remember, the objective of an essay is to...

Great! Keep it up

Yeah not exactly sure, but keep in mind that the environment is going to be totally different, so will you be able to get used to the environment and competition while coping with the pressure of year 12. Anyway, perhaps this could help...

Here are some generous hints for questions 9 & 10. For a series to have a limiting sum, r has to be between 1 and -1. In an intuitive sense, this means that the terms in the series are getting smaller and smaller until their value is ‘too small’ to affect the overall sum. To achieve this, I...

I dont think you can find a resource dedicated to ppm conversions, as it usually comes as part of multi-layer questions, like titration or concentration questions. If you’re after mastering ppm conversions, I suggest enhancing your understanding about why and how they’re used. I’d happily write...

I apologise if this comes across as being rude or blunt, but based on the long list of questions you have presented, I’d say that you have a gap in your understanding of series and sequences. I suggest you revise the main theory and formulae and redo some of the examples you did in class, then...

You have to get 80+ in 2u and 78+ in chem (to get a 90 ATAR), assuming that you get a band 6 or (or at least something close to that (around 87) in your other subjects) I suggest forgetting about your internal marks for now and work on performing in your trials and hsc, reason for that is the...

What's your school rank ? how many students have got a band 6 in 2u in your school ? (from 2015-2017/ a rough estimate is fine)

Which one ?

Yeah, as Pikachu said, ext maths and English and maybe 2u maths as well. In terms of how much study you should be doing, well for 2u and 3u just make sure you have a through understanding of the content with no gaps, and then start doing past papers. Do as many as you can and make sure you go...

School rank ? And how many band 6s have your school received in the subjects you mentioned in the past few years ? ( an approximation is fine)

He said he's alright with all the other topics, I'm not saying that based on nothing. No such thing as reaching an ''Intellectual limit'' for someone who's still in year 12, a lot of other factors must be considered before jumping to this bald conclusion. Mechanics is one of these topics...

Dropping 4u at this time of the year? And he said he’s going alright with the other topics, so why drop it because of one topic ? Unless he has more than 10 units and 4u is absolutely consuming his time AND happened to be his worst subject, I can’t see how dropping it should be even considered.

How sad. Teaching maths without actively engaging with the students nor the maths! Anyhow, check this playlist out, it’s by Eddie Woo. There is about 40 videos or so on mechanics with examples, perhaps they can provide you with some assistance...

Yes it's very simple actually. Forget what happened, and start studying. Ask as many relevant questions as you can, do a fair amount of past papers and LOTS of questions. When I was doing chem, I stuffed up one assignment that was worth about 30% or 40% can't exactly remember, and everyone...