Someone post up the answers :D (1 Viewer)

[Arithela]

.

 

[jessicaaa.]

Yes, please, I need to work out roughly what I got

 

[sdx91]

if you think you lost <30 marks then you will get over 75%

 

[MrKim]

Well why dont someone ask a question that they wanted to know about, then others can help and give their answers. Compare and voila.

As for me, i wanted to know the answer in regards to the monthly payment part (ii) i think it was. I got something like 100~ something, i dont know if this is correct. Someone know?

 

[jessi90]

i think i got 975.8

 

[jessicaaa.]

I got $985. something.

I originally got 975...but I thought I messed up the formula, so I changed it.

 

[harryboyles]

I got $975.85

 

[MrKim]

There goes a couple of marks..

 

[Rampager]

Question 9 b) ii) $975.

Question 10 a) 5ln5 - 4

Question 7 a) e^(3) and e^(-1)

Question 6c) 18.75(PI) units^2

Question 6b)i) 20
ii) t = 10
iii) t = 6
iv) forget.

 

[BackCountrySnow]

yeah, i got somewhere in the 900s.

 

[ewasemma]

Hey guys just wondering.. what would an 86/120 be roughly as a moderated mark for maths. thanks

 

[iluvGG]

I got $975.85

yes! i got exactly that!! hope its right. lol

 

[Rampager]

Hey guys just wondering.. what would an 86/120 be roughly as a moderated mark for maths. thanks

Band 4, unlikely Band 5.

 

[BackCountrySnow]

Question 6b)
iii) t = 6

yes i cbf quoting the ppl saying it isnt.
but here is why it is t=6:

what is acceleration?
It is the change in velocity over time.

And how do we measure this change?
oh, through the gradient.

yes, and when is the gradient 0?
umm, at the maximum, when 't' equals zero?

oh wow, correct.

 

[ewasemma]

Band 4, unlikely Band 5.

:S I really wanted a band 5

 

[chook 05]

was question #9 c) (ii) = 1/6kb^4 units below axis?

 

[minijumbuk]

was question #9 c) (ii) = 1/6kb^4 units below axis?

f'(x) = k(b²x - x³/3)
f(x) = k(b²x² - x⁴/12) + C

When x = b, y = 0

0 = k(b⁴/2 - b⁴/12) + C
C = - 5b⁴k/12

f(x) = k(b²x² - x⁴/12) + - 5b⁴k/12

When x = 0,
f(x) = - 5b⁴k/12
Therefore 5b⁴k/12 below x-axis

 

[chrisbos2007]

what do you guys think a 80/120 will end up being??

70-80? or what

 

[ipod21]

Question 7 a) e^(3) and e^(-1)

Question 6b)
iv) forget.

Q 7a) i got X= 2e^(-3)
6b) iv) 1480/3

 

[henry08]

I got $975.85

I got this as well.
Yay