Search results

LOL like what? I seriously cant think of 2u questions.. So I use a exam question book :P The harder questions are the graphing questions which I cbb posting

We don't even get the marking criteria with all the a/e outcomes. We just get a mark, usually marked by 2 English teachers. And then you just think wth did I do wrong to achieve this shit mark? since most of the teachers provide no feedback/unreadable feedback.. and they say my writing is hard...

OMG genius :p I couldn't think how to get 1/e. Im gonna rep you for that :) anyhow loan repayment question..: Keirren borrows $150,000 on a 7.5% p/a interest, calculated at the end of each month after Keirren repays an amount. a)How much is each monthly repayment if Keirren pays off the loan in...

lol alright, i'm quite sure i did it right unless someone can correct me :uhhuh:

\frac{\partial \frac{lnx}{x}}{\partial x} = \frac{x\times\frac{1}{x}-lnx\times 1 }{x^{2}} when \frac{\partial \frac{lnx}{x}}{\partial x} = 0 \frac{1-lnx}{x^{2}}=0 \therefore x=e Test for maximum in dy/dx test \frac{1}{e}>0 test e=0 test e^{2}<0 \therefore x=e is maximum p.s are you sure your...

Wow I was thinking there was no way I could get a band 4 since i got like 50% for trials(yes I know I'm shit at English).

The logon procedure requires one to enter a username and password to gain access to the network. The level of access is defined by the network admin. The logoff procedure... (I don't know what processes is for this. Someone expand please) Question:Outline a feasibility study

LOL this. Just need to remember my glasses or I'm screwed

Are there always clocks in the exam room? Or do we need to bring a watch or something?

you could say PA=a, PB=a +2r so a Geometric Mean would be \sqrt{a(a+r)} =\sqrt{a^{2}+ar} the Arithmetic mean would be \frac{a+a+2r}{2}=a+r =\sqrt{(a+r)^{2}}=\sqrt{a^{2}+2ar+r^{2}} So therefore it is obvious that \sqrt{a^{2}+2ar+r^{2}}> \sqrt{a^{2}+2ar}

Oh yeah lol i forgot to say height of tank is 20m

3-2cos^{2}x -3sinx=0 3-2(1-sin^{2}x)-3sinx=0 2sin^{2}x -3sinx +1=0 sinx=1, \frac{1}{2} \therefore x=90^{\circ},270^{\circ},30^{\circ}, 150^{\circ} eqn: 2sin^{2}x +cosx -2 =0 2(1-cos^{2}x) +cosx-2=0 -2cos^{2}x +cosx =0 cosx=-0.5, 0.5 \therefore x=60^{\circ}, 120^{\circ}, 240^{\circ}, 300^{\circ}

whoops my bad. XD (cosx)^2=1/2 x=45, 315. (assuming you ment 0<=x<=360) Question thats still not done:Water flows from a full tank at the rate given by dh/dt= -1.5 sqrt(t) where h is the depth of the water in meters at any time t minutes. Height of tank is 20m. a)find the equation for h in...

a)n/2*(2 +4(n-1)) b)n/2 *(6 +4(n-1)) i)50/2(2 +4(49)) -50/2(6 +4(50-1)) =-100 ii)101 Question: Water flows from a full tank at the rate given by dh/dt= -1.5 sqrt(t) where h is the depth of the water in meters at any time t minutes. a)find the equation for h in terms of t b)how long does it take...

Can you show me how to do it? cause i got let roots = @, 3@ -b/a=4@=0 c/a=(pq +q)/2 =3@^2 q(p+1)=0, p=-1 and thats it lol

Are you sure that works out? because i got both roots as zero and then couldn't find q.

i)when t=10, m=50 k=-0.047 ii)dM/dt=k.80e^(kt) when t=4, dM/dt=-3.116 ---> rate of decay =3.1 g/hr iii)half-life when m=40 =14hrs 45min Question: series 2,4,8,16,32.... find the 20th term in the series

i)-b/a =4 ii)c/a=ab +ac+bc =0 1/a+1/b+1/c =0/4 =0 Question: f(x)=√(1 +x^2) where -1<=x<=4 Using 6 function values, using Simpsons rule, find the approximate area under the curve.

My bad. I got that straight out of a random page of a textbook. Dumb book with misprints =.=

let roots be @, @ +6 2@ +6=k -------->@=(k-6)/2 -----1 @(@ +6)=1----------2 sub 1 in 2 (k-6)/2[(k-6)/2 +6)=1 k^2=40 k=√40 Question: Show that y=e^x can be written as x=1/2 lny