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nfi about the second question, but the first one: 13! / 10!3! is that right? and if she absolutely wanted one of each lollipop, it'd be: 9C3

Thanks for the link to the stripes and bars, the wiki article is way too complicated for me, but I think I get the gist of it. a) 9 stripes (identical) + (4-1) bars (identical), so: 12! / 9!3! <- dividing out the identical elements) b) I didn't get this initially, but the explanation above...

still not 100% satisfied, so one last attempt: A B C D E F G H I Let's say those are the 9 guys, with A and B not to be on the same team. Let's consider 9 cases, where each of 9 will be refs, then add all these 9 cases at the end. The reason i'm attempting this is because the 9th guy is...

If two particular persons are not to be in the same team, how many ways are there then to choose the teams? actually, was thinking about this last night, how about: First way to solve: 3 cases- Case 1: B is ref - 8C4/2 <-- self explanatory. Case 2: A is ref - 8C4/2 <-- self...

syllabus dot point based notes is the way to go. the textbook can really go into unnecessary depth. to find out when it's going into unnecessary depth, compare business studies in action textbook with other textbooks and then make your notes.

time management. start all your assignments on the day you get them. aim to finish them off 1-2 weeks early. do minimum 1 hour of maths every night without fail. only if you're finding it unbearably hard. if you can work harder and practise, do so. HORRIBLY WILD ESTIMATE: if your papers are...

cambridge textbook will be released - well, uncorrected proof copy for inspections etc - around august i think. same authors, new topics added. i've got the table of contents somewhere, cbf finding it. they released it so late because bill pender (and lots of other nsw maths teachers) were...

this is a 4unit hsc question (1981). but, it could feasibly pop up, i guess? a question similar to this is in the New Senior Maths (fitzpatrick) book - q 30, chapter 3.4 - (In how many ways can eight basketball players be divided into four groups of two?) anyways, SupR is right - you...

google: edudata hsc filetype:pdf exactly as I've typed it above. should net you some solid stuff :-)

ok, step 7 was bugging me last night as I was trying to sleep - trial and error was wrong there. since 9 played cricket and 9 played basketball, and 13 all up, we see that 9+9 = 18 - but it can't be 18 because there should be 13. 18-13 = 5, which is the overlapping number between those 2...

haha, after you watch anime for a while, you end up not liking the action anime (aka shonen anime) that much, simply because of all the repetition. that's what happened to me anyway.

zzz over-rated imo. also, it started last season - i dropped it after 5ish eps iirc. loving the new full metal panic! if it's even 50% as good as the originals, it'll be the best mecha series in a while imo. mixed feelings about the new SAO. Megalo Boxing seems to be rushing a bit too much...

any new technology would require the use of usul al fiqh to solve any problems raised by said technology. pick any technology, really, and look at social problems (for lack of a better word) that the technology raises. eg internet - pornography industries - application of machine slaughtering...

answering op: 1. memorise theorems. 2. draw diagram of question. 3. angle hunt. 4. after you've reached the angle you want, look through your angle hunt and find the most efficient "route" to get to your final answer. what steps did you take to reach the end? 5. write down those steps, then...

then you should spend your time doing past paper questions. use a tool like greenshot to comb through past papers - there are 1000s available online nowadays - and screenshot --> paste into word document. categorise questions into topics etc. additional benefit: you can look at past papers...

you'll get a band 6 if you spent your time studying, not if you spend your time worrying about whether you'll get band 6 or not. study study study

have posted solution in the general maths forum. don't think you should be double posting same question in multiple forums? what are the rules on these forums :O

past paper questions for vast majority of the course are still relevant and valuable. even without past paper questions, if you can do all your textbook questions, and are constantly revising them, you're heading towards a band 6.

Working our way through the question systematically: 1. ok, total = 25, no one is outside the circles. 2. smack bang in the middle, part of all 3 circles: 2 3. 2 play football only. Keep the "12" in mind for next couple of steps: 4. Since 9 play football and cricket, and we've already...