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March 29, 2024, 08:22:18 pm

Author Topic: Mathematics Question Thread  (Read 1297117 times)  Share 

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zachary99

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Re: Mathematics Question Thread
« Reply #600 on: October 18, 2016, 06:28:03 pm »
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just did last years paper and scored 100% ;D

Can you score 100 for a subject? or is the maximum hsc mark 99? (just like the max atar is 99.95 not 100)

RuiAce

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Re: Mathematics Question Thread
« Reply #601 on: October 18, 2016, 06:30:46 pm »
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just did last years paper and scored 100% ;D

Can you score 100 for a subject? or is the maximum hsc mark 99? (just like the max atar is 99.95 not 100)
Yes. Whilst it's extremely hard, it is possible to score 100.

1st place in 2U mathematics always gets 100.

zachary99

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Re: Mathematics Question Thread
« Reply #602 on: October 18, 2016, 06:43:09 pm »
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Cheers!

yeah it will be very hard

jamonwindeyer

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Re: Mathematics Question Thread
« Reply #603 on: October 18, 2016, 07:33:25 pm »
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just did last years paper and scored 100% ;D

Can you score 100 for a subject? or is the maximum hsc mark 99? (just like the max atar is 99.95 not 100)

In case anyone is curious, the reason for this is because an ATAR of 100 means you beat 100% of students in the state. Including yourself ;)

RuiAce

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Re: Mathematics Question Thread
« Reply #604 on: October 18, 2016, 07:36:57 pm »
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Yep ditto with Jamon. Reminder that the ATAR is a rank, as opposed to the HSC giving you a set of marks.

Blissfulmelodii

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Re: Mathematics Question Thread
« Reply #605 on: October 18, 2016, 07:43:20 pm »
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In case anyone is curious, the reason for this is because an ATAR of 100 means you beat 100% of students in the state. Including yourself ;)

That's a fair point but in that case why stop at 99.95? why not go to 99.99?
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jakesilove

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Re: Mathematics Question Thread
« Reply #606 on: October 18, 2016, 08:52:06 pm »
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That's a fair point but in that case why stop at 99.95? why not go to 99.99?

Policy reasons; an ATAR is one a tool to limit university intake on a supply/demand basis. There's really no point scaling people about 99.95, since only like 40 people in the state get that mark anyway!
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Blissfulmelodii

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Re: Mathematics Question Thread
« Reply #607 on: October 18, 2016, 08:53:00 pm »
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Policy reasons; an ATAR is one a tool to limit university intake on a supply/demand basis. There's really no point scaling people about 99.95, since only like 40 people in the state get that mark anyway!

ahh okay. Fair enough
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FallonXay

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Re: Mathematics Question Thread
« Reply #608 on: October 18, 2016, 09:01:36 pm »
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Hiya all!

I'm having some trouble understanding how to go about doing part v of this question.  ???

Thanks for the help btw!
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RuiAce

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Re: Mathematics Question Thread
« Reply #609 on: October 18, 2016, 09:04:15 pm »
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Hiya all!

I'm having some trouble understanding how to go about doing part v of this question.  ???

Thanks for the help btw!
This was answered somewhere in the last two pages (on my phone right now so can't link)

FallonXay

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Re: Mathematics Question Thread
« Reply #610 on: October 18, 2016, 09:05:34 pm »
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This was answered somewhere in the last two pages (on my phone right now so can't link)

ahh k, found it. cheers  ;D
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bethjomay

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Re: Mathematics Question Thread
« Reply #611 on: October 18, 2016, 09:07:16 pm »
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I have a couple of questions! For the first one, I've done part I) but I'm having trouble with the transformation to reach the answer in part ii) and a bit lost after that. In the second question I got all but part three. The answers mentioned 'favourable outcomes' which seems quite simple but I'm not familiar, could someone enlighten me? Thank you!
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RuiAce

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Re: Mathematics Question Thread
« Reply #612 on: October 18, 2016, 09:42:38 pm »
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(Image removed from quote.)

I have a couple of questions! For the first one, I've done part I) but I'm having trouble with the transformation to reach the answer in part ii) and a bit lost after that. In the second question I got all but part three. The answers mentioned 'favourable outcomes' which seems quite simple but I'm not familiar, could someone enlighten me? Thank you! (Image removed from quote.)(Image removed from quote.)



Some hints now:

For part (iii), recall your usual coordinate methods in geometry questions. You're given a length, and you want to find the area of a triangle with it. Usually, to use A=1/2 bh, we consider an associated perpendicular distance.

(iv) is just your brute force max/min question

RuiAce

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Re: Mathematics Question Thread
« Reply #613 on: October 18, 2016, 09:44:24 pm »
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Note that in this context, however, it's used to list the amount of favourable combinations of tickets.
« Last Edit: October 18, 2016, 09:47:14 pm by RuiAce »

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Re: Mathematics Question Thread
« Reply #614 on: October 18, 2016, 10:33:20 pm »
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2007, Q10: having trouble understanding the answer.

Thanks :P