HSC 2013 Maths Marathon (archive) (3 Viewers)

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bedpotato

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Re: HSC 2013 2U Marathon

How can you tell which pair of points is the diagonal and which is the side of the parallelogram?
Idk if this is true, but I go by the order it's written in the question. For example, the parallelogram ABCD, start from A to B, then to C, then to D. D is obviously then in the first quadrant. :L
 

Shazer2

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Re: HSC 2013 2U Marathon

So is (-4, 1) still a solution?
 

untamedkid

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Re: HSC 2013 2U Marathon

Idk if this is true, but I go by the order it's written in the question. For example, the parallelogram ABCD, start from A to B, then to C, then to D. D is obviously then in the first quadrant. :L
yeah that's what I have learnt throughout the year, follow the order they give, cost me some marks :(
 

ocatal

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Re: HSC 2013 2U Marathon

Idk if this is true, but I go by the order it's written in the question. For example, the parallelogram ABCD, start from A to B, then to C, then to D. D is obviously then in the first quadrant. :L
Hmm makes sense..
 

Shazer2

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Re: HSC 2013 2U Marathon

Yeah but it doesn't explicitly state that D HAS to be in the first quadrant it just says find D such that ABCD forms a parallelogram. I remember questions like this in the past where students have got marks for 3 different solutions.
 

Menomaths

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Re: HSC 2013 2U Marathon

Idk if this is true, but I go by the order it's written in the question. For example, the parallelogram ABCD, start from A to B, then to C, then to D. D is obviously then in the first quadrant. :L
Good tip, repped :)
 

bedpotato

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Shazer2

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Re: HSC 2013 2U Marathon

I'm not really sure what you're getting at. If we can get actual clarification on it that'd be good, I was just under that impression because of the students who got marks in the past.
 

leesh95

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Re: HSC 2013 2U Marathon

We know that 2^10=1024 so that 2^10 can be represented by a four digit numeral.

How many digits are there in 2^1000 when written as a numeral?
 

Shazer2

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Re: HSC 2013 2U Marathon

We know that 2^10=1024 so that 2^10 can be represented by a four digit numeral.

How many digits are there in 2^1000 when written as a numeral?
So I looked up the answer, but I'm not sure how to solve it. Care to explain?
 

leesh95

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Re: HSC 2013 2U Marathon

So I looked up the answer, but I'm not sure how to solve it. Care to explain?
Maybe I should have put part 1) Find log 2^1000 to 3 decimal places.

This might give you a clue
 
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