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yeah thanks, I thought that was it - incorrect answers are always so confusing! haha

Yeah it didn't show up at first, I had to change the symbols used.

Solve 4x < / 15 < / -9x only confused because the answers say that x = 0 is included, when clearly it doesn't satisfy the inequation. btw, < / means less than or equal to. thanks!

Very nice solution soulsearcher, but you could also say this:

I understand what you're saying, but m is negative (i.e m = -4), which means that after we've finished with the operations we will get a postive number, regardless of the value of m. Since we are going to get a positive m, the answer must be -m, since m is originally negative, and since two...

root(m^2), given that m < 0, is equal to -m right? since m is negative, once you square it and then take the square root, you'll get an answer which is positive, but it will still have the value of m, i.e. simplified it comes out to -m. right?

I'm only in year 11 btw: Not sure if that's correct, probably isn't lol. From what has been said above this method seems too easy. Here's the next question: (mind you, it's year 11) Prove that x^2 +xy + y^2 > 0 for any non-zero values of x and y. Remember to put in the spoilers!

But we haven't learnt anything about complex numbers, so how the hell can they ask us to classify it as irrational or rational? We haven't touched on the concept of complex numbers, and thus have no real indication of unreal numbers. I just thought that an irrational number cannot be expressed...

I recently had my first preliminary mathematics exam and one of the questions went like this: Choose the irrational numbers from the following list of numbers: ..., ..., ..., ..., ..., root(-6) Would you consider this an irrational number? Do you think the teacher would regard this as...

Mary Shelley - Frankenstein Reading it for english

Thanks for all the replies, I'll just ask the office who I must see. (I don't know since I'm new to the school)

We're using Maths in Focus, and I'm using Cambridge as a supplement

To those of you who have done (or are currently doing) distance education courses through your school, is it your responsibility to collect your packages from the office? Just curious as I haven't recieved anything for german beginners yet ...

Yep, that's what I got as well.

Simplify: (x^(-1) + y^(-1))/(x+y) P.S I'm not getting help with my hw, just wondering if you can do it.

Quite good, I only had English Advanced because the majority of my periods were frees.

what sort of marks in extension 1 maths should you be getting if you want to do well in extension 2?

Yeah, I know, just soo curious as to how hard extension 2 maths would be.

Is being able to do most of the extension exercises in the Cambridge 3 unit maths textbook a good indicator of whether I should consider extension 2 mathematics in year 12?

Well, technically you still are in your 11th year of school :) .