Recent content by AfroNerd

Re: HSC 2016 2U Marathon Yep Im pretty sure 3x+y-5=0 is the normal. Ty and also would that mean c=7

Re: HSC 2016 2U Marathon Differentiate y=x^2 + bx + c and hence find values of b and c if the line 3x+y-5=0 is a normal to the curve at the point X(3,-1).

Re: Year 12 Mathematics 3 Unit Cambridge Question & Answer Thread having trouble with this binomial question

Hey guys, so I'm just wondering if there is anyone i can PM to mark my english essay/give me feedback. Thank you!!!

Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread Okay tyvm I understand now. I was originally looking in the year 11 3u Cambridge book for permutations and combinations but couldn't find it.

Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread Ah so u were working it out for 40000 and not 4000?

Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread I don't understand how the answer wouldn't be 60 for b) since there are 5 numbers that can form 5 digits, which are greater than 4000. And the question doesn't say how many digits the number over 4000 can be. However, I...

Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread So im not quite sure how to do questions b,c & d, and just out of curiosity how would you find how many 4 digit numbers are even.

Hey guys, I would really appreciate it if someone could help me with this question. Describe how the Milky Way could have formed, including accretion and cooling of the universe in your answer.

How would u do question 2, 3 and 4 I couldn't do step 3 on them

We'll start off with some of these

Okay guys, so I'm making this new thread for anyone who wants to practice induction.

Re: Year 11 Mathematics 3 Unit Cambridge Question & Answer Thread Hey guys, need help with these questions on polynomials and induction

okay thanks heaps, and just wondering if the gravitational force is the same as the centripetal force

Yeah sorry I meant 6.0x10^24 and the question says at a distance of 145km.