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Curious to know is this Maths 1B UWS (Western Sydney) version?

Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread My reasoning as to why I subtract 180 from 81'52' is that the tan theta value is a value of negative 7, which lies somewhere in the 2nd quadrant of the ASTC diagram.

Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread I had an attempt at the question and I can't quite get it EX7D Q9 (a) -2x=x^2-x-6 0=x^2+x-6 0=(x+3)(x-2) x=-3,2 $ My thinking for part 9 (b) was just to work out the derivative of $ y=x^2-x-6...

Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread One of the angles I believe to be right (the 71 34') and the other I believe to be wrong. Would love it , if somebody could confirm. Seeing that the two points of intersection are at x=2, -3 I then substituted this back...

Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread EX7D Q 9 (b) is there a mistake with the answer? $ Q 9 (a) Find where y=-2x meets y=(x+2)(x-3) $ $ (b) Find, to the nearest minute, the angles that the tangents to y=(x+2)(x-3) at these points make with the x-axis...

Here is my solution to Q1. 3x+4y=36 \ \textcircled{1} 4x+3y=24 \ \textcircled{2} d=\frac{|ax_1+by_1+c|}{\sqrt{a^2+b^2}} $ By treating absolute values positive both sides $ \frac{3x+4y-36}{5}=\frac{4x+3y-24}{5} \therefore 0=x-y+12 $ By treating \textcircled{1} as positive and...

Re: HSC 2016 3U Marathon Do you have an answer for the values for part (a) ? I just want to compare my answers.

Re: HSC 2017 General Mathematics Marathon Yep I see it now thanks for the spot. I have done a heap of projectile motion questions in the past, so I can see the error now................Its a mistake from Sharon Kennedy's (the author of the text) Trialmaths papers then. (a 2016 version of the text)

Re: HSC 2016 3U Marathon This question was from the 2013 HSC Exam which got me thinking over the past few days Q12 d 2013 HSC Exam 0= \binom{n}{0}-\binom{n}{1}+\binom{n}{2}-...+(-1)^n \binom{n}{n} I always thought of binomial expansions (as being of the form) (1+x)^n In the Corneos...

Do you have an answer for it? Just want to compare my answers

Re: HSC 2017 General Mathematics Marathon Went through this question with a fellow student yesterday (from the 2016 edition of the General Maths Year 12 Past Trialmaths Enterprises): I was thinking you could use the sine or cosine rule to solve. By using each of the two methods below I...

Decided to create this thread to kick start the 2017 HSC :jump:

Do Knox Grammar, MLC and Caringbah have some sort of deal between the schools? The questions from the 2016 trials seem to overlap.

In Part B, If you subtracted (6000-10)/200= 29.5 (around 30 terms) In Part C, If you subtracted (6000-10)/90=65.555 terms In part D, if you subtracted (6000-10)/200=29.5 (like B you would get around 30 terms)

OK this was my thoughts. If the first term in this sequence is 10. Knowing also that the difference is 30. We also know that there are 200 terms. Another way Id do is to subtract the 6000 from 10 and divide by the difference of 30, which in this case gives close to the 200 mark sample.

From the 2016 Sydney Grammar Trials: Q22 MCQ A machine produces 6000 items in a week. To obtain a systematic sample of 200, we could start with the 10th item and then select item numbers: (A) 40,70,100,130,........ (B) 200,400,600, 800......... (C) 100, 190, 280, 370,........... (D)...

I know this may sound rude but the proportions of food provided on flights is minimal and doesn't it keep you full. (Maybe Im a big eater)

I also looked at the flights special for a multi way trip from Sydney to Shanghai to Beijing back to Sydney costing around $1100.....which is affordable for me. Just want to unwind after a long HSC year (worth of tutoring) and my other job.

Trying to plan Shanghai and Beijing. I have many Chinese friends from China through my time from uni. Alot of people ask me whether im interested in 'Rural' or 'Urban'. I never really understood what they meant by that. (im assuming its a city v country thing.....similiar to Australia ....only...

Anyone here been there? Any recommended places? thinking of doing a short stop there for 6 weeks by the end of this year.