e^lnx=x
ln(e^lnx)=lnx (logging both sides)
lnxlne=lnx (log laws)
lnx=lnx (lne=1)
x=lnx/ln
=x
therefore LHS=RHS
im not sure if that's 100% right but im pretty sure thats how u do it.
T = C + Ae*-kt
10 = 250 + Ae*0
A = -240
when t = 15, T = 70
70 = 250 + -240*-15k
ln0.75 = -15klne
k = ln0.75/-15 (lne = 1)
= 0.019178804......
when t=30
T = 250 - 240e*-30k
=114.99...
i think i went alright...
Mathemathics - 2/25
Math Ext 1 - 2/5
Business Studies - 2/34
PDHPE - 2/18
English Advanced - 7/25
lol i swear i have a habit of coming 2nd.
well i kind of disagree with school social life being enough. yr 12 is a year when many people have big partys/celebrations because there turning 18 which imo should not be missed in life.
Re: 回复: Re: 回复: Re: How did you go in your half yearlies?
yes, you still can but it doing well in the half yearlies can make it easier to achieve a good UAI.