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its hard for me to check whether i got this right cuz i dont really understand algs lol my answers 21 b ii) Table = 6 is removed There would have to be a section of code between lines 10-30 where the user input is obtains for "table" i.e. get user input for "table" - The inputted value would...

what is the different between a surfactant and an emulsifying agent ive just got they both reduce surface tension :S

when do we use this instead of a line of best fit?

www.google.com google is the DNS is a DNS the webserver? or is it part of a webserver :S "what best describes a distributed database" b) dB that has different data physically stored on different computers, however this is not necessarily apparent when users access the database c) the complete...

integrating -30(20-t) as function of t how do we know whether to do a) (expand) = -600 + t then integrate = -600t + (t^2)/2 or b) -30*([20-t)^2)/2 = -15([20-t)^2) which is doing the a^(n+1) all 0ver (n+1)

ANSWERS for b i) 224 ii) 4392 they use a = 20 and d=12 so can a be different? cuz then wouldnt that change the t2/t1 = t4/t3 :S another Q "show that equation x^2 + (p-3)x - (2p+1) = 0, where p is real, has real distinct roots" delta = (p-3)^2 - (4*1*-[2p+1]) = (p-3)^2 - (4[-2p-1]) = (p-3)^2...

when we have graphed the results from the standards and wish to work out a conc beyond what we have graphed (i.e. HSC 2006 25 where we have to extrapolate), do we do a line of best fit and then base our answer on that? or do we just estimate how the curve is changing?

how is it that they get nh3 to a liquid to be removed to increase its yeild? do they increase the pressure? how many atmospheres roughly? and could be that part of monitoring the process? ensuring the pressure is high enough to get nh3(l) so it can be removed instead of a buildup of gas nh3? and...

so they are exothermic and done for the energy they produce. Lack of o2 = CO or C. do we ever want to intentially form C or CO? CO is toxic so i doubt that but C...could we ever want this and gain it by means of incomplete combustion?

when i wrote my essay i wrote on the inside of the back cover cuz i ran out of pages and i was in a rush so didnt want to wait for a new booklet do u think they will see that its got stuff there !!!

what is this technique? its about a man who is initially walking everywhere "I was sufficiently qualified to move up a notch in the heirarchy to bus travel". Its like humorous yeh?

Text 3 d and e. i struggled with this text when i did it just before. I dont get the journey. This is what i wrote for each. (i studied inner journeys) d) a reflective tone e) Through Rothwell's journey he begins to accumulate the perception that it is not just "paintings and sketches" which...

" for some a>0 two curves f(x) = a^x and g(x) = log(base a)x are drawn on the same axes so that they touch on y=x. i) Write down expressions for their derivatives (Done) ii) write down an equation involving natural logarithms whose solution is the x value at their points of contact Answer: since...

Using trapezoidal rule 4 function values estimate volume of area between x axis and y=4-(4/x) i get down to there answer (pi/2)[0+2(4+7r1/9)+9] but then the answers get 35.1 ldp i get 49.0 1dp:S for this when finding the area of shaded, how come we dont have to split the integral if they are...

appears i have the last 2 threads aha i feel needy :O anwho aha when we are doing volume V = pi(integral) y^2 Just say the equation is y=(x^2 - 4) and then we do the volume V=pi(integral) (x^2 + 4)^2 do we have to expand this before integrating i.e. x^4 + 8x + 16 ?? and then wed integrate or...

partway through a question they get: (e^ln2)^-2/3 + (e^ln2)^1/3 = 2^-2/3 + 2^1/3 = 2^2/3 x (2+1) <----how do they get this factorisation or whatever they did? = 3*2^(2/3)

i know this should be an easy question. I got it the first time using heaps of logs n what not lol but the answers did it really simply given 5^m = 4, find the value of 5^1-2m answer: 5^m = 4 therefore: 5^1-2m = 5/5^2m <--how do they get this lol :S = 5/(15^m)^2 = 5/16

one is NO2 and the other is NO2-. what makes one an ion and the other a molecule?

any1 know an quantitative way to test for detergent? would it be adding an acid or somthing? and when we titrate a sample with EDTA to determine CaCO3 (ppm) for hardness, i thought we didnt use weak acids as its hard to determine their end point... would any1 like to shed some summary info on...

just did the paper then for 22 we have to justify a data type for the array i said an array as data type string. Is that the same entirely as the answers' array of strings? 23 i had no idea what that algorithm was doing? did any1 find these questions difficult lol. especially bi, ii, iii and c...