General Thoughts - Mathematics (3 Viewers)

[kokodamonkey]

90-100% raw mark... good exam.. found it a whole lot easier then the trial... Jeez that last bit in q10... 35+ lines of working! grr! but still got there in the end!

 

[Kmara2nv]

umm i got 2010...but i got it in febuary i think lol..i got the 2010 part but didnt no how to do month loll so should get atleast one mark there

 

[thecan]

i put november 2010
cause i got a value over 10/12

dec 11.0-11.9
nov 10.0-10.9
ovt 9.0-9.9
.
.
.
jan 0.0-0.9

fairly hard test all up.

 

[Gigabyte89]

Well i got 2.88 years

.88 x 12 = 10.5 (well thats what i got)

.:. during October 2010.

Edit: Ah SHIT!

 

[yoakim]

Don't worry dude, it's october 2010, I tested 2 close values, and it's no way november. It's october
Yeah I thought, in my opinion, it was an overall good exam. Can't say what I will get as a final mark, but areas in Q.9 and 10 screwed me up. I got so confused between birthdays and actual birthdays...if that makes sense - when you're born that's considered as a birthday right? Anyway, I somehow got the total value of both investors to be the same. Question 10 b) I had NO IDEA how to even approach it.

 

[thecan]

Well i got 2.88 years

.88 x 12 = 10.5 (well thats what i got)

.:. during October 2010.

Edit: Ah SHIT!

but the maximum "score" you could of got was "12" and the minimum "0"

wouldnt this mean that the first month of the year is between 0 and 1, then feb is between 1 and 2, etc
december would be between 11 and 12

therefore shouldnt the answer be november because 10.8 is between 10 and 11??

 

[Jordanf6769]

Yeah i got October. 2010

as did i and i was ab it doubtful but im happy now that a few ppl got it

 

[joshuaali]

Oh shit, thecan might be right.

 

[codyjh]

Yeah i got October. 2010

november 2001, got 2.889 years or something

0.889*12 = ~ 10.6ish months

that corresponds to november. cause x<=12

think thats right :s...?

expecting ~100/120 - got a few stupid things wrong (simpsons rule -_-. put h/2 instead of h/3)

was a fairly hard test though

 

[collide]

but the maximum "score" you could of got was "12" and the minimum "0"

wouldnt this mean that the first month of the year is between 0 and 1, then feb is between 1 and 2, etc
december would be between 11 and 12

therefore shouldnt the answer be november because 10.8 is between 10 and 11??

10.8.. 10 months, 0.8 x 31 days = 24.8 days
Therefore, 10 months 24.8 days, hence October, 2010?

 

[codyjh]

november 2001

my bad nov 2010**

 

[Angry Koala]

Didn't think it was too bad, 9 and 10 were a bit tricky though. In reference to the exponential growth, i got roughly 10.5. assuming that 12 was the end of december, as 12.5 would be more than 12 months, 10.5 should be the middle of november not october, with december being between 11.0- 12.0. My two cents anyway.

 

[joshuaali]

10.8.. 10 months, 0.8 x 31 days = 24.8 days
Therefore, 10 months 24.8 days, hence October, 2010?

What thecan is trying to say is that by the time "10 months" has elapsed, October would be finished and November would start. Going "24.8" days in, you would be in the middle of November.

 

[eppingMCE]

Heheh i put 2010 on the 10th month too, but i wasnt sure if the 10th month is november or october lol

 

[Buiboi]

waht did you guys get for:
Q5b iv) i got some log answer from what i can remember
7a) iv)
and iii) k's value
b) ii) i 'think' i put a 6 or something?!?
Q9) b) both part 1 and 2

and how did you guys set out 9c)

 

[justfriedy]

hey did any1 get x=(m*L1)/(L1+L2) for 10b/ii). and if so, did any1 manage to prove it was a minimum? i think i accidently proved it as a maximum lol

 

[miss-smexy]

That test was the worst test in which I have done so far out of all of my subjects. Thank god there's no more HSC mathematics for me for the rest of my life. Anyway, I did manage (I think) to get the mobile phone exponential question:

8(a) Correct
A = 984.6 mil
k = 0.4855....

Can someone check my answers? i'm kind of anxious... Did you get any of the following answers?! I know it doesn't matter anymore... but... XD


3(a)
(v) 200 units^2

3(b)
(iv) 200 days

4(b)
(i) 1/6
(ii) 5/6

4(c)
(v) (43pi-9-3root3) / 12

5(b) Incorrect
(iv) ln 32

6(b)
(ii) x=0,3
For x = 0... did you get a max/min... or was it a point of inflexion?!

7(a)
(i) S (0,4.25)

7(b) Correct
(ii) 4units^2

9(b)
(i) 39/52
(ii) 3/8

As you can see, I am crap at maths ='(

*cries*

EDIT: Okay... From looking at posts afterwards, i have put brackets next to my answers where it seems that I have got them correct

 

[Armenikum]

WTF

that test was insane

i have never solved a growth question like that!!!!

I hate that attitude. What the fuck did you think it was going to be? The same type of questions every year to suit your neat litte sense of security in trying to memorise the types of questions they give? This is year 12, grow up - my brother in yr 9 could do the exams if it was the same thing over and over - BOS catches on, they wanted candidates to APPLY their knowledge of mathematics, not rote learn exact questions.

I know I ranted, but I am just sick of this attitude when people complain when they are confronted with the unexpected - such a child's attitude.

 

[ponsoa]

yeah exam was good, expecting 105-115. it is def november at end of oct uve had 10/12 of a year, 0.833333 ... so it is sometime in nov

 

[joshuaali]

waht did you guys get for:
Q5b iv) i got some log answer from what i can remember
7a) iv)
and iii) k's value
b) ii) i 'think' i put a 6 or something?!?
Q9) b) both part 1 and 2

and how did you guys set out 9c)

5 (b) (iv) log_e32 ?
7 (a) (iii) 3.75 (or 15/4) ?
(b) (ii) I think it was 4, or some whole number.
9 (b) (i) 39/51 ?
(ii) 39/51 * 26/50 * 13/49 ?