General Thoughts: Mathematics (4 Viewers)

[spanky125]

I got a = 4.5.

I got that too! Took me atleast 5 minutes though haha and it is only worth 1 mark.

 

[titaniumwithin]

AND can somebody explain wtf does the trapezoidal rule gives a better estimate than the simpsons rule ?? LMAO wtf.

Simpson's rule uses parabolas, not rectangles to estimate area and so is generally better than the trapezoidal rule for the same thing. I don't know if it's correct but I guessed it.

 

[blinx96]

aye... so if i said for the trapezoidal question that because the face of the tent is similar to the shape of a trapezium... i would get that one mark right? (word for word btw ahhaha)

 

[titaniumwithin]

nek minute the BOS decide not to scale the exams this year :/

Lol they better not .

 

[Shazer2]

Can you explain how you got to that? (Mind you, I took a complete guess)

I also said because they were trapeziums! As for this, if a is 4.5 then the area below the x-axis on the left hand side will be -2 units, the total area above is then the area below on the right hand side is so all together you get -2 + 15/4 - 7/4 = 0.

 

[tutorhunt]

What was your guys' answer for 13 C) ?

 

[yus456]

That was a hard exam! I am going fial :'(

 

[spanky125]

What was your guys' answer for 13 C) ?

What was 13 C)?

 

[leesh95]

They repeated lots of questions from previous years.

I think I would've done okay if not under exam conditions. I got really freaked out.

 

[andybandy]

What was 13 C)?

i got 21.21cm

 

[mathsiam]

I found question 14 one of the harder questions in the paper. Especially with that stupid car question involving max/min -_- Also the trout/carp question and the probability question when they asked for the eventual probability was challenging. I still liked this years paper than last year considering I hate locus

 

[yus456]

I think I would've done okay if not under exam conditions. I got really freaked out.[/QUOTE]

But that was the weirdest format for a HSC math exam. Like last years one was soooooooooooo easy.

 

[yus456]

I found question 14 one of the harder questions in the paper. Especially with that stupid car question involving max/min -_- Also the trout/carp question and the probability question when they asked for the eventual probability was challenging. I still liked this years paper than last year considering I hate locus

I liked the last years one way better, this years exam was very hard for me and my cohort.

 

[SGSII]

That was the hardest thing ever!
Looking back I think the max I can is 60 raw :S

 

[spanky125]

i got 21.21cm

Same, it was also equivalent to 450^(1/2)

 

[yus456]

i thought it was fairly easy.. hoping for around 95% so far

That is pretty good.

 

[SGSII]

And I agree, last years paper was heaps easier

 

[avhead]

sqrt(450) for the length of CD

What did you guys get for the minimum distance of the two cars?

 

[lolwot]

for the car maxima/minima did you guys get one side like 100-50t and the other 80t and do consine the consine rule too find r^2?

 

[tutorhunt]

yep!