Search results

The point P(-3,8) divides the interval AB externally in the ratio k:1. If A is the point (6,-4) and B is the point (0,4), find the value of k. In this question, I got 3, but the answer says -3. Wouldn't that be incorrect, as our teacher told us that if the question says a point externally...

You can go to Talent100 if you want and buy their materials that way. :) It's unlikely that anyone here will be willing to give you their materials for a lower price than they got them for.

Ah, ok thanks. :) IDK. This was a part of a worksheet that I found as part of Extension 1 work, I believe...

Hi guys, Could you please tell me if I got the answer to this question right? The lines 8x + qy + 6 = 0 and 3x − 4y + 4 = 0 are perpendicular. Find the value of q. I got q = -6, but the answer says 6. I'm guessing a typo?

Very true.

$6.50 this year. :) http://www.amt.edu.au/wp-content/uploads/Aust-table.pdf

She's talking about prelim physics, I believe.

Some resources I could find by searching up "amc past papers junior"... - https://www.bhs.sa.edu.au/australian-mathematics-competition-questions/ (a few questions for each division on a school's website) - https://edfinity.com/users/sign_up (GetSet AMC free sample problems) Hope this helps...

Have you tried browsing the Resources part of this website? I often find loads of useful notes there. :)

No worries. :)

In such a situation, you would consider 75o to be correct, since it's the common answer when you use both the sine and cosine rules. As for why 105o can't be an answer, well, I can't think of a particularly good reason. The best I can think of is subbing cos105o into the cosine rule as...

xx = sqrt(27/8) = ((3/2)3)1/2 = (3/2)3/2 Therefore, x = 3/2 Hope this helps. :)

Buy the AMC books with past questions in them - there's a whole series...'practising' them can help you get a D at least... well, they helped me anyway. :) If you want to know how to get them, I think there's usually info on the back of your AMC certificate.

If there's no way you can ask anyone about it, I'd say something like ~1500 words, to give you a guide?? We had to do a report for Yr 10 commerce last year as well (ours was on employment issues), and that was our word count.

Thank you. :)

Hi guys, Yet more questions... :/ Q1. I feel like the given answer is wrong...I keep getting a = n + 1, but the answer says a = n - 1. Q2. I'm actually not sure how to do this question; I don't feel like the given answer is wrong, so please provide working out for this question if...

Thanks a million. :D

Thanks. That's what I thought. :)

Hi guys, Could you please confirm for me that the given answers to the following questions are incorrect, based on their given working? I strongly believe that they're wrong, but I want to be certain. c: Q1. - Is the correct answer cotx? Q2. If sinx = 2/√7 and cosx<0, find the exact...

Thanks, guys. I forgot that there are 2! ways of arranging the C and the R, so thanks for reminding me about that (see, this is why I ask even the most seemingly trivial questions :p), and also for confirming that both given answers are wrong. :)