for the zinc question they asked for mass
aas 1.6 was the concentration and c = n/v therefore mols = 0.16
mass = mol * fw
so its actually 0.16 * molar mass of zinc
as for the hydrogen question its somewhere around 3 billion with 28 litres of hydrogen gas needed to produce the same effect...
no. if you get 12 in q 10 and 8 in q1 and someone gets 12 in q1 and 10 in q 12 u get the same mark.
alignment is the transformation of a raw mark into a hsc mark and that hsc mark gets scaled according to difficulty and other factors
For 10 a
you find the area of the rectangle
then you can find the area of the unshaded region by making x the subject
so y = ln (x-2) becomes x= e^y +2
then rectangle - unshaded = shaded
for part b...
you needed to prove similarity then equating sides find PM
then you needed to use 1/2 ab...
Terry lee's son or not
Max Menzies from Sydney grammar is probably going to top Ext 2 Maths this year.
Other contenders for top 3 include Jess Wong from MLC and a whole bunch of other maths olympiad people from Ruse
Lol...I think the question is who shall be second =)
I'm predicting a resurgence of Sydney Grammar to maybe top 7?
Hornsby isn't that strong this year, Baulko are inconsistent.
I'd say either Sydney Girls or NSG.
I can predict that Ruse won't come first in ext 2 maths if it does make you...
External stability essentially refers to the ability of the government to service our net foreign liabilities and the volatility of the exchange rate
Accordingly we have to consider the Net Foreign Liabilities, Current Account and Exchange rate whenever discussing external stability
So our...
You seem to be a bit confused
You are correct the participation rate is 80% as it takes into account whoever participates in the workforce over the population aged over 15. So essentially
labour force / everyone over 15 = 12/15*100
Unemployment rate is 3/12*100 = 25%, as it is those who are...