rate of fuel/km= fuel/ speed
=F/u
sub in F= Au^3 +B/u
=Au^2 + B/u^2
find minimum fuel usage so max distance
so dr/du=0
2Au - 2B/u^3
...
u=(B/A)^(1/4)
show its a min through second derivative
then use that over answer in (i) to show how much faster the plane should...
hmm didnt work out for me like that...
low tide (1.5m) origin high tide (-1.5m)
l-------------------------0--------------------------l
10m begins(0.5m) 10m ends(-0.5m)
a=1.5 n= pi/7 Its already been shown
X= 1.5cos{pi.t/7 + @}
at t=0 x=1.5
1.5=1.5...
what are you guys on about??? raw marks in extension get scaled you dont need 45/50 raw mark to get a band E4... Im not sure about EE1 but in mathsE1 70% goes to about 45/50 i think ..might be similar to EE1???
I've looked up all the courses they are all really interesting and i do well in maths, chem and english. Dont do legal studies regret that. As for fashion I do a T-VET course and I enjoy that too. So hard to decide!!!!!!!!!
Law: I think i can get into it...sounds really interesting and...
ok... the four areas im looking at are: Medicine, Law, Business and Fashion.
I know fashion is really different from the rest but yeeeeh. Any advice on choosing a path????
Maths ext is the only one well n truely done we finished last term n have been revising since everything else... lots 2 do lol though english is almost there... eng ext... i feel like we havent even properly started things...hopeless teacher
i just needed to vent because some of us have real problems but still dont get the luxury of choosing when to do our exams wtf is your problem :confused:
a girl in my yr missed her last trial paper coz she was too sick so they will let her re-do it nxt week but the day after the trial she showd up to a party... i find it very hard to believe that she cudnt do a trial paper but is well enuff to party the nxt day... wat do u guys think???
hsc mark= 50%assessment + 50%external
so if ur assessment mark is 70% and ur external is 98%
hsc mark= 35 + 49 = 84%
and ur assessment mark would be moderated to a higher mark too, so it would go even higher...thats wat i tink happens... but yeh im in da same position so i hope thats...