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heyo metapod!

Hello there missy thanks for selling me those textbooks

Ohhh i understand it it now! It wasn't too bad but I didn't think it would turn out that complicated. Thank you for both of your contributions! :D

How do you sketch x^3+y^3=a^3 (where a is a constant) using implicit differentiation? this is from the Cambridge 3U book Thanks!

How are state rankings determined? Through external assessment mark, internal or both? and if two people get the same mark, what happens?

I would do what Mathmaster suggested ^ Its definitely good to have an electronic copy because it makes it easier to add/edit the content any time you want but to keep in scratch with your handwriting and memory retention, you should write out the key concepts to prepare. It really works :D

use complementary angles sin2x = cosx cos(90-2x) = cos(x) etc

oh right, i missed the 2nd part. i guess that's reasonable then

But if it was for free, everyone would swarm in to have their marks rechecked and it would just cause a huge problem

English - 89 Geography - 89 History - 89 Science - 90 Maths - 95 Computing - 98 I was disappointed, i expected better of myself but i guess they're not too bad.

i got 2.2~~km/h (cant remember) for the increase in speed :/

I think the the big bang is different as it was the theory saying the universe began from a singularity while the expanding universe theory suggests that galaxies will continue to move apart and there was only one big bang. (The other theory was pulsating/oscillating universe theory)

red shift was evidence for the expanding universe theory

Its actually hydrosphere :L ironically, precipitation was one of the answers to the short answer section too (chemical reaction one)

i think that is the question and yeah it is for all values of x. i think he wrote "I have two lines: y=ax y=2x" to trick you

ax=2x x(a-2)=0 x=0 and 2 ? :D

Yup!, except blue light is scattered more (10x) more than red , hence the effect produces a blue sky

Independent - The one you change Dependant - The variable you measure Q: why is the sky blue

Thanks for replying guys, ive found a good list in some notes: Hydrochloric Acid HCl Sulfuric Acid H2SO4 Sodium Chloride NaCl Ammonia NH3 Calcium carbonate CaCO3 Nitric Acid HNO3

just only look at the battery and the negative terminal of the battery will attract with the negative of the component (by wires) , same for the positive terminal. The rest in the middle just needs to connect together.