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Hey guys, I'm so lost on how to do redox reactions. We did em in year 11 and I completely forgot. Say for this titration q: 25 mL of hydrogen peroxide was made up to 250 mL with water, from this solution 25 mL was titrated against 23.45 mL of 0.0200 mol L-1 potassium permanganate solution...

Start doing past papers then, if their too easy then your good to go lol

Im assuming you mean -1/(4-2x) + 2, which has 4-2x on the denominator and + 2 by itself. If thats the case, the original 1/x can be reflected upon the y axis hence: 1/-x, then horizontally dilated by a factor of 1/2 hence: 1/-2x, then translated right 2 hence 1/(4-2x) --> it helps to write the...

Yeah, your first task is usually the lightest in weighting, and you still got more internals to come. The mark you get is actually irrelevant apart from the fact that it gives your ranks for school. If you ranked well in your first assessment your on track to 99. Don't sweat the actual marks...

I wouldn't memorise any of them, if you've done transformations you understand the general way of translating and dilating a function.

|u| = √2 |w| and |v| = √3 |w| |u|^2 = 2|w|^2 and |v|^2 = 3|w|^2 hence: 2|w|^2 + 3|w|^2 - |w|^2 = 4|w|^2 not sure how you got 1 as your numerator shouldn't it be 2?

Hey guys, I got 98 in math adv and 46 in e1 early (accelerated). Im already set for e2, so my advanced mark doesn't matter, but should I redo e1 for a better score?? Would a 47-48 be that much of a difference to my atar?