Discussion and Suggested Solutions - Mathematics 2017

[Anything]

Q11-14 seemed pretty straightforward yeah?

Yeah pretty much only Q15 and Q16 were a hassle

[portia1605]

so what did people get for the second part of the finance question. i got 88000 originally then redid it and got 4019, then subbed that back in and it didnt work and then got something like 4021 or something

[adelaidecruz]

so what did people get for the second part of the finance question. i got 88000 originally then redid it and got 4019, then subbed that back in and it didnt work and then got something like 4021 or something

Aaah forgot everything the minute I stepped out of the school but my answer was around ~4000 too!

[Annie657]

I got $4019 for it?? And i forgot the amount of cents that i rounded to LOL

Me too! Hah I think it was right lol

[georgiia]

i got in the 4000's

[K9810]

How did everyone go for that question where we had to integrate cosx using Simpsons rule between 0 and pi/3? What did you get??

[navtejkr]

For the find the 10th term question, i used simultaneous equations for the 5th term and the sum of the first 4 terms and whatever they gave in the question but i swear it didnt make sense in the end. Idk what i did wrong cs the difference was -40 and my first term was 40, and it just didnt add up and now i feel shit and scared about that question
do you think i could still get marks for using simultaneous equations tho?

[Anfar3]

B6 raw? I found it harder than 2016 and 15 so maybe around 83?

[Opengangs]

How did everyone go for that question where we had to integrate cosx using Simpsons rule between 0 and pi/3? What did you get??

Easy, since it was one application, use the formula from the formula sheet.
Can't remember the exact value, tho

For the find the 10th term question, i used simultaneous equations for the 5th term and the sum of the first 4 terms and whatever they gave in the question but i swear it didnt make sense in the end. Idk what i did wrong cs the difference was -40 and my first term was 40, and it just didnt add up and now i feel shit and scared about that question
do you think i could still get marks for using simultaneous equations tho?

difference was -40, but the first term should have been 360

[Sahana2]

Did anyone get something around $4608 or something like that for that question?

 (The value of X)
yeah i think i got that aswell

[georgiia]

For the find the 10th term question, i used simultaneous equations for the 5th term and the sum of the first 4 terms and whatever they gave in the question but i swear it didnt make sense in the end. Idk what i did wrong cs the difference was -40 and my first term was 40, and it just didnt add up and now i feel shit and scared about that question
do you think i could still get marks for using simultaneous equations tho?

I'm pretty sure i got -40 for the difference but 0 for the answer

[adelaidecruz]

For the find the 10th term question, i used simultaneous equations for the 5th term and the sum of the first 4 terms and whatever they gave in the question but i swear it didnt make sense in the end. Idk what i did wrong cs the difference was -40 and my first term was 40, and it just didnt add up and now i feel shit and scared about that question
do you think i could still get marks for using simultaneous equations tho?

I used simultaneous equations too for T5 and S4 and I got -40 as my d. As long as you got 0 for the 10th term you're all good

[_____]

What did people get for the congruent triangles thing? I got x = 45 degrees but I'm not too sure (using tan and drawing new right angled triangles).

[RuiAce]

B6 raw? I found it harder than 2016 and 15 so maybe around 83?

I do anticipate that there will be heavier alignment since a lot of candidates found it hard. If it's usually 85 or so then 83 this year is probably a fair call

[Opengangs]

What did people get for the congruent triangles thing? I got x = 45 degrees but I'm not too sure (using tan and drawing new right angled triangles).

Wasn't it 36 degrees?