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Why is MPC equal to 0.75? cos isn't C = 2000 + 0.75(20000) = 17000 so MPC = 17000/20000 = 0.85? idk... o.O

Hi, can't seem to get the answer for this q: C = 2000 + 0.75Y I = 3000 so Y = 20000 I have to find the simple multiplier, and I know the answer's meant to be 4... how do you do it?

What is the pH of the resulting solution when 50mL of 0.15M potassium hydroxide solution and 150mL of 0.10M sulfuric acid are mixed? [answer is 0.95] I know that you're meant to find the moles of KOH & H2SO4 used, and then find the no. of moles in excess (for H2SO4)... but don't really...

How would you solve Q22 (h)? (it's from yr 12 Cambridge - 1A)

Does a balanced budget usually indicate a neutral stance? (Any cases where it wouldn't?)

ikr, pretty sure A was correct which is why I got so confused... :/

Ok, thanks for clarifying my q guys! (Y) Guess I'll be safe and leave the tables/dotpts for Chem then, haha. :L

Is it a good idea to use tables for answering short answer q's in Economics (esp. for discuss/compare)? I know that they are recommended for sciences...

In Q1 (shown in picture), why can't the answer be A (correct one is B)? Even if you list them alphabetically, don't get why A doesn't work...

Q. Examine 2^n and 2n^3 for low values of n, make a judgement which is eventually bigger, and prove your result by induction. (For this q, I know that 2n^3 will be bigger, but not sure how to prove by induction. Also the answer is supposedly 2^n > 2n^3, for n>12... except do you show that?)

Hi, I'm having trouble finding an appropriate related texts for my core text, As You Like It (that haven't been popular choices in the past, eg. Tim Winton - The Turning). Does anyone have any recommendations for short stories/poems that involve belonging to place?

I'm having troubles working out this question: Find a and b if x^4-2x^3+x^2+ax+b is exactly divisible by x^2+x-1 What would you do to D(x)=x^2+x-1 (since D(x) cannot be factorised straight away, and nothing can be subbed into D(x) to equal zero... :/)?

Having a bit of trouble working through this question:

thank you so much for the replies! :D :D saved me from having to trek to the library again to find a new book, haha. :L

Hi, I was just wondering if we were allowed to study prescribed HSC texts in Yr 11, (even if your school isn't going to study that particular text for HSC)? I have a post-colonial assignment which involves me reading a post-colonial novel, and I am thinking of doing "The Namesake". However...

Hi, I'm having trouble solving this question and some help would be greatly appreciated. (:

Hi, I'm having trouble with this question (on 3D Trig) I would really appreciate if anyone could help/explain how to do this question (or at least, just part (a)). Thanks!

Also,

thanks! just wondering, where do you get cambridge worked solutions? o.O

trig help please!