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I know I was ASSUMING but no matter what i sub'ed the answer would have been the same because it is PROPORTIONAL to it. so it wouldn't have mattered whether they werent THE actual population, because the equation is a proportional one. but i do get what you are saying it makes sense and thanx...

OHHHHH! DUH! i totally forgot to put it back in the equation! thanx i owe you BIG TIME!

I'm sorry, i dont get the way you said it, it is so confusing! if this came up in an exam would i have to do it yourway? would i loose marks if i made it up? do u think u could "dumb-down" your method 4 me? i mean really DUMB!

hey i just redid the population growth one and i did make up my own Initial population :) i can't beleive i didnt think of it b4 i only said that in my last post to be a smartass! anyway i got the right answer now, i let A=500 and went on from there. is this how it is supposed to be done? is...

No. that means 0.5x times the squate root of (25-x^2). sorry i'm not good at typing these things out ./ - meant square root

Yeah i get the formula, i even tried to use it b4 but what is getting me is that there is no initial population, there is no A! this is what i could not understand in the first place! sorry if that sounded 'agro' but its a stupid question and should be killed! i don't know where to go from...

Hey guys, I'm sorry to be a real pain but there is a couple of questions i am having trouble with. If anyone can help me it would be greatly appreciated! okay so here they are (they are from maths in focus by the way) Q1. (Q12 of 7.2) A population in a certain city is growing at a rate...

hey guys i am a 2005 earth student i check on here regularly too but there is never anyone that seems even slightly interested in E and E. and i wish people would become more involved in the subject. that way there will be a lot more support going on between earthlings!

Sorry I feel for you though! i have to start figuring these things out soon for my own multimedia thing but i dont even have an idea yet!! What is your project? I'll keep u posted if i accidently figure it out!

Where do you get the OFFICIAL information on this from? Like the session times, names etc etc?

My yearly was 2 and 1/2 hours. I worrked through it with just enough time to ..... finish. i had no spare time at all. The previous one was an hour or hour and a half but it was the same marks. oh well, i guess this should persuade me to study more!

Yes I Know i was a bit like "oh yeah i know what i'm doing". but i lost most of marks on the stupidist mistakes. and that just makes me feel worse. If i just did not get the whole thing i would of been like "well i tried" but it was stupid mistakes! GRRRRRRR! Thanx though,i will try and...

I know comparing won't make a difference. (The whole you dont become any skinnier by calling someone else fat or any prettier by calling someone else ugly or any smarter by calling someone else dumb or {.... well you get the point} thing applies). But I was genuinley dissapointed. Between my...

Hey, i got my 1/2 yearly mark back and was devestated! my mark was much lower than i usually get, it was kinda avarage compared to everyone else at my school but i was just wondering ... what kind of marks did everybody get? The frustration is killing me!!!

I did seachange as one of the supp texts in class for RFTG. Did anyone else do this? If anyone has any notes or ideas or points or ANYTHING about it. I will owe them BIG TIME. I also did LSGOB by Macleod. What are your "texts of own choosing?"

oh my god! ITS OFFICIAL, i am an idiot! (y-4)^2 = y^2 - 8y +16 THANX so much ur a lifesaver i cant believe i screwed that up! I got the answer now 16(pi)/3 Thanx THanx THAnx THANx THANX

hey I am a 2u student and this is how i would work out that question ( it is probably wrong) but i hope it helps y=x^3 y' = 3x^2 y' = 0, for stationary pnt 3x^2 = 0 x^2 = 0 hence x=0 when x=0, y= 0^3 = 0 therefore (0,0) y''= 6x y(0)'' = 6(0) =0 since...

Hey can any one help me with this volume problem i dont think i am getting the right answer. ok so there is a diagram of a straight line which cuts the x-axis at -2 and the y-axis at 4, obviously its equation is y=2x+4. On the diagram the area between the line and the 2 axis' is shaded...

I hope they do go away. I get really angry that I lose marks over stupid things like that. Did you do prac papers and past papers and stuff? cuz that is supposed to be a big help. I've been planning to do some things like that for a while but time is valuable right now, there just doesn't seem...

Really? its nice to know that I'm not alone in making stupid mistakes. But trust me I've made stupider mistakes than that! I really need to learn to think carefully about what I am doing. But there lies a danger in wasting time!