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A good question. When we are analysing a large data set with a symmetric distribution (i.e. normally called a Gaussian curve or a normal distribution), it is generally the case that the mean is ~ equal to the median. But when I have a skewed distribution, the mean is also skewed towards the...

I think you are stressing a bit too much. All I will say is that doing your best in all the things that you are already doing is sufficient for a 90+ ATAR for sure - just make sure that you are aware of how different your school assessments are different to the actual HSC because, in the end...

Yes, I think leaving one hour for q16 is possible and is a good strategy. Clean up the basics so much that you donot need a formula sheet and a calculator (atleast as much as you can - sometimes you need to evaluate trig stuff and you will need a calculator)/ It might seem weird and unimportant...

Can someone confirm the solution:

no - I mean the projection's parametric equation would be z=0 and y=a where a is restricted within the original function's range (basically your x-component becomes 0). It is not what you are imagining - this are 3-d geometry and you cannot assume 2-d rules... atleast that is where I think the...

line - z = 0 to be precise from the initial value of y's range to the final value of final value of y's range

you know when you have something like this the first thing you search is Catalan numbers and you get a wiki page. Yeh. Go through it first - link: https://wiki2.org/en/Catalan_number Dont be super intimidated by it. Recurrence relation - when I have a sequence where I know n number of terms...

yes. i think i understand a bit. So what you're basically doing is this: Imagine you had a piece of paper on a table and a pencil that is perpendicular to the table (this is the z-axis). Now if I look from the top (which is the x-y plane) i see a parabola (doesn't really matter what the eqn...

umm... some visuals maybe - i cannot really understand what your saying but from what I can make of your statement, I can imagine the curve y=x^2 in the 3-d space. Now its parametric equation would be y = a^2 and x = a and z = 0. But if I, per se, want this parabola on the y-z plane, then it...

It is nice that you like most of your subjects, especially chemistry but I would be wary. Chemistry is content-heavy and so is economics but I think you can definitely manage it as long as you schedule it properly. It also helps that you have a subject that you can break free with (the textiles)...

My dumb brain. Why?

Hello, I think this is good enough. (the wording is pretty bad tho) - hope it helps.

So, the goal of this question is to decrease the concentration of dichromate. First, we should identify which one is the dichromate which is clearly Cr2O7 2- as per the name (di- = 2 and chromate = chromium and oxygen compound). As a result, we are trying to shift the equilibrium to the left...

So the total mass of the sample is 4.52g which will obviously be in the denominator because we are finding the %weight/weight ratio between sulphate and the original sample. Now to determine the numerator, we need to know how much of the barium sulphate mass is actually sulphate. Consider the...

nah. efdit: maybe

Near my home town. It is more of a tribal sorta thing near the hills in the ghats. some people like that. That was all - just a fun fact lol.

oh. that was why I said select. I am not generalising.

i am indian. i can account for it. any further suggestions?

lol. Western people and their religion. a big fat mess you are ay. haha. (I don't know why people are getting so angry about this daamn) indians are better. You tell a select group of them that their god doesn't exist they will just chop your head off. Then you'll see the lord for sure. Have fun/