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I'm not doing extension 1, im only doing the extension 2 trial And im pretty sure im not going to get above 70, I just want to pass (get above 50)

Who else wants Integrand to come to the 2015 BOS trials?

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re: HSC Chemistry Marathon Archive Not sure why the pipe will be changing colour. Also we aren't told that Chlorine gas is yellow, so im not sure if we could assume that.

For 4u that isn't the case. I feel like it gets harder and harder every year.

Count me in! PM sent

Take task 1's seriously, and study hard for them (meaning start studying now during the 2 week holidays you have). They have quite an impact on your overall average and ranks. However if you do not go as well as you expected for task 1's, half-yearlies have a bigger impact so don't be completely...

If that's the case then, why don't you neg drsoccerball on a daily basis :haha:

Re: 2015 HSC Economics Marathon Study_like_a_nerd = Male Confirmed :tongue: But in all seriousness, Gabriel Moussa's answer would get all 5 marks in my opinion.

What you must understand is that the N[emoji14] ratio has limitations, because both nitrogen and phosphorus need to be present in the sample, so there are other ways of determining eutrophication quantitatively. Another common method is measuring BOD, which has no limitations. So does this...

Actually, phosphorus causes the eutrophication. Of course the common way to dump phosphorus into waterways is when its in shampoos and detergents in the form of phosphates. So when you measure the N:P ratio, you don't measure the concentration of nitrates or phosphates, you measure the...

Because when measuring the N:P ratio, in order to determine the amount of nutrients in a sample of water, phosphorus tends to be the growth limiting nutrient, hence we measure the N:P ratio according to the amount of phosphorus. The reason why phosphorus would be the better answer is because...

Re: 2015 HSC Economics Marathon That means that in the long run, there would be less global inequality in terms of the distribution of income and wealth, thus having a positive outcome.

Re: 2015 HSC Economics Marathon -More private jets and sports cars (Ferrari's, Lamborghini's, etc). Therefore it is good because it raises the quality of life.

Re: 2015 HSC Economics Marathon -Higher wealth inequality

Re: 2015 HSC Economics Marathon https://en.wikipedia.org/wiki/Import_replacement Its practically just replace imports with domestic production, and that can be done through increased protection

Re: 2015 HSC Economics Marathon When talking about competitive neutrality, its best to mention that the NCP prevents any advantage that the publicly owned businesses have over private owned businesses. This can be done through allowing privately owned businesses access to infrastructure, such...

Yeah I got A as well for question 18 For question 20, I had to look up the paper and I saw that there is a graph with the question. The answer to it is C, as having a quota of 40 units will raise the price to $15, which is the same effect as having a $5 tariff. The way to know how much of a...

Actually both nitrates and phosphates cause eutrophication, they are both nutrients

Re: MX2 2015 Integration Marathon Yet according to wolfram, the integral converges