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Yeah, I think that works. Damnit. He increases his original jump by 4.2%. Bleh, hopefully I'll get 2/3 marks or something.

You might be right. I can't see what's wrong with my working though, but if your backwards-checking is correct, then I made a mistake somewhere.

Yep, we had that too. I think what teachers do is select random questions from past papers that are relevant in each topic. To the question you mentioned, you had to differentiate 6x²-3x, sub x=-1, find the gradent of the tangent, giving you the gradient of the normal (m1xm2 = -1), then subbing...

No. 0.3/4.2*100 is the athlete's qualifying jump (the one he did to beat the requirement by 0.1m)

There were seven sections, each worth about 12 marks. I doubt its the same exam, our school sets its own exams.

Rofl, this exact question was in my 2u paper today. Thanks, Shoom =P

Minus 0.1, since 7.14 is what he jumped and 7.14-0.1 will be the requirement.

It's 0.3/4.3x100 - 0.1 I know thats what you meant, but if you scroll up, you'll find that Derivative thought the question was an analogy to your situation.

Rofl, it wasn't an analogy. I win both ways.

My answer's true too: a small amount - but that doesn't mean you have to let a year 11 exam make you worry.

4.2% = 0.3 1% = 0.3/4.2 100% = 0.3/4.2 x 100 edit: Subtract 0.1 from the result of the 3rd line.

Re: ASAP help!!!!!!!!!!!!!!!!!!!!!!!!!!11 a-5 = -2+2a -a = 3 a = -3 a-5 = 2-2a 3a = 7 a = 7/3 .'. a = -3 or 7/3

First Of All You Stop Being So Shift-Happy. It's Pretty Annoying To Read. Second of all, you take in this quote: "Don't worry about the future, for the fact that worrying is as effective as trying to solve an algebra equation by chewing bubblegum"

Billy Elliot, he breaks through the povo and manly-expected lifestyle to become a self-expressed ballet dancer.

Our school has year 11 for the first week of term 4 =[ I think its so they can sort the subject selection shizzle out

You could've just said cos180 = -1.. lol =] I understand that expansion, but isn't that 3 unit stuff? These questions were taken from a 2u paper.

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I think you're right.

I got v), but I don't get iv). Is it possible to expand sin(180+x)? Therefore giving sin180+sinx = 0 + 0.3 = 0.3?

No, I didn't notice this. We've probably done it in class and I wasn't paying attention. I'll look up a text book for it.