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I rekon i have a per term fluctuation... Hols: motivation = 0 Wk 1: motivation = 0 Wk 2: motivation = 0 upon the sudden realisation that im completely behind the rest of the class studywise... Wk 3: motivation = 7 Wk 4-8: motivation = 8 Wk 9-10/11: motivation = 5

To find the constants, i would sub in a value for x into the original equation, find its y, Then use those values and sub into one of the new equations. Then just solve the equation for the constant. eg. 2x-2y+7=0 sub x=1....therefore y= 4.5 (or 9/2) For the new equation, lets take y =...

Adv. English 78% (~40/150) Chemistry 91% (2/32) Physics 92% (2/24) Maths Ext.1 87% (8/40) Maths Ext.2 90% (1/9)

I remember doing this in class, but im stil not sure. I think a neutron becomes a proton, in accordance with quantum theory and the composition of protons and neutrons ie up and down quarks...ask someone who has done quanta to quarks. EDIT: Neutrons (One Up Quark, Two Down Quarks). One down...

Procrastination is the worst....ive done a cumulative of ~5 hours in the past week :S

To adhere to topic: 1. Understand concepts 2. Practice and Apply 3. Memorise concepts and practice on a regular basis. Going on from what fizzy said about hard working students, i must admit i am in the situation where my ranking is high in my school but probably not where i would want it to...

This is a question i found in my half yearly 4u exam, just wanted to see how people go about answering it. For the equation: <a href="http://www.codecogs.com/eqnedit.php?latex=e^x@plus;e^y=5" target="_blank"><img src="http://latex.codecogs.com/gif.latex?e^x+e^y=5" title="e^x+e^y=5" /></a> i)...

Goals hmmm... 1st in 4u maths top 5 in 3u maths 1st Physics 1st Chemistry top 20 Adv. Eng

Cupboard, then Fridge, then Cupboard again.

Oh for sure! For some reason 4u seems so logical as opposed to 3u which is just annoying. ^also hows the volumes topic in 4u? Does it compare in difficulty to mechanics or what?

Yeah you are right, it does only suggest points of changing concavity. To actual determine inflexion you HAVE TO test points. I mighta been a little lazy :S

First Derivative = gradient function Second Derivative = concavity function when solving the second derivative when = 0 you are finding when the concavity changes, ie a point of inflexion.

Hmmm yeah. I did use 9.8, but not sure if you need to use the acceleration due to gravity at a specific height after 30s. How many marks was the question?

Ok so we need to find mass after 30 secs = 2000000-(30 x 1500) (on converting to kg) T = 8x10^7 using the formula: a = (T-mg)/m a = 31.12 (to 2 d.p.) then use F = ma where m = 85 (mass of astronaut) a = 31.12 (as we found above) therefore F = 2645 N :)

Unfortunately Industrial Chemistry.....would have really liked to have done Biochem or Forensic Chem

Hey, yeah i live in menai, so sutherland shire area. Im in year 12, and preee good at physics (atm) just need to brush up on errors and mistakes particularly before mid term exams. Thanks, Kamine 0430507137 kamine.naidoo@gmail.com

Advanced English >85% Chemistry >90% Physics >98% Maths (Ext. 1) >90% Maths (Ext. 2) >95% ...for some reason i seem to find ext 2 maths tests easier than the ext 1 ones :S

Yeah during 2010 i played wayy too much PC games. Inc. css tf2 (:P) and when Black Ops came out was on that all the time. But yeah i del all my accounts and shit so i wouldnt get tempted...worked so far :D.

Hmm well, not quite sure but as a starting point (if you have not already), differentiate the polynomial, since there is a root of multiplicity 2, then the first derivative must also be divisible by (x-1) then just go on from there.