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    HSC 2015 Maths Marathon (archive)

    Re: HSC 2015 2U Marathon you're making it too complicated with the triangle, there is no need.. its just the integration of the parabola minus the straight line from 0 to the x-coordinate of A
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    2015ers Chit-Chat Thread

    if they ask for a specific sonnet for EBB............... nup.. i only know two
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    2015ers Chit-Chat Thread

    my school even outsources a group of ladies to be in the hall for every exam (internal exams) so theres no teachers.. i think the ladies are from bostes and they collect the papers and deal with everything in the examination hall...
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    2015ers Chit-Chat Thread

    is my school like the only one that has been preparing us for hsc since year 11 in terms of exams... ever since year 11 yearly's we've had our exams in the massive hall (where hsc exams are done) and we have to bring our little plastic sleeve as our pencil case and write our BOS number on every...
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    2015ers Chit-Chat Thread

    my school did that one booklet thing for my trials, its no biggie. it just leaves you like 5 pages (i think) for section 1 and then it writes on a page "section 2 starts after this page" and then you write in your section 2 answer and if you want to write more for one section, i think you ask...
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    Official BOS Trial 2015 Thread

    hes not allowed his beard at school, try looking for the 'sonic' hair
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    2015ers Chit-Chat Thread

    your writing is worse than that m8
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    Need help with a question

    yeah sydney grammar schools trial 2014
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    Need help with a question

    i hope that makes sense...
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    Need help with a question

    i just did this question... hahah first you have to know that time=distance/speed so the distance is 1000 and the speed is v therefore, time=1000/v once you have that we have to calculate the wages and the cost per litre separately so for the wages you times 1000/v by 60 = 60000/v now for...
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    HSC 2015 Maths Marathon (archive)

    Re: HSC 2015 2U Marathon let y = 3^x y^2+2y-15=0 (y-3)(y+5) =0 y=3 and y=-5 3^x=3 therefore x=1 and 3^x=-5 no solution so x=1
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    Need help with two questions

    yeah sorry! i got confused myself because of the options, sorry guys!
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    Need help with two questions

    the answers are wrong its 2ln4
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    Need help with two questions

    you use tan60 if you are trying to find the slope of line l
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    Need help with two questions

    thats what i thought at first because I've done this past paper before and i know its 2lnx+C but the answer for the question is actually B. unless theres a mistake with the options
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    Need help with two questions

    you have to use tan30 because we are trying to find the slope of line k. and then by using tan30 the answer is C
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    European Migrant Crisis

    you should really do better research than that
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    European Migrant Crisis

    turks are helping isis? wow I'm turk and I've never heard that one before.
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    Voume HSC question

    you can either to the volume from -pi/3 to pi/3 but since the graph is identical on both sides you can just do from 0 to pi/3 and then just times it by two. you get the same answer either way
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    2015ers Chit-Chat Thread

    you looked ugly (as usual)
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