Further Math Exam 1: Answers + Discussion!

[clidedescope]

Hey the guy who posted the answers,

How can the answer for question 6 in matrices be C if the order of X is 3x2?

Unless I'm missing something here, the OP says that the answer IS E...

[Dan1995]

Hey the guy who posted the answers,

How can the answer for question 6 in matrices be C if the order of X is 3x2?

Hey the guy who asked a question without reading the post properly, the listed answer was not C.
Your's truly, the guy who posted the answers.

[davidneitz09]

So if I averaged 95% on SACS, ranked 4th, I only got 36/40 on exam 1, what if I get about 57/60 on Exam 2, what range study score am I looking at? thanks!

[Kayleejohns]

Hello could anyone explain how question 9 of Networks is D? I had B, not sure how it could be D? Thanks!!

[FER0058]

Hey the guy who asked a question without reading the post properly, the listed answer was not C.
Your's truly, the guy who posted the answers.

sorry dude didnt see tht. btw i got 35/45 for ex1 and hoping to get 60/60 for ex2 and i got 95/100 for sacs. what SS will i be achieving at this stage

[jamesarshid]

34/40 on that exam with 98/100 in my SAC marks, what are my chances of a 40?

[Dan1995]

sorry dude didnt see tht. btw i got 35/45 for ex1 and hoping to get 60/60 for ex2 and i got 95/100 for sacs. what SS will i be achieving at this stage

All good, I'd say low-mid 40s.

[davidneitz09]

Hello could anyone explain how question 9 of Networks is D? I had B, not sure how it could be D? Thanks!!

Cut D has the edge of 4 which goes back from Sink to Source, therefore it is not counted making it 18
Cuts A & B are discounted because they do not cut through both carparks!

[clidedescope]

For all future study score estimation requests: http://www.atarnotes.com/forum/index.php?topic=138592.0

Apparently, this is a pretty accurate way to do it. I'm doubtful that the cut-off for an A+ in exam 1 this year will be any higher than 37/40 - from my knowledge, that's the highest it's ever been.
But really, try not to focus on predictions and instead think towards the exam on Monday that also contributes to your study score.

[kevleee]

Hello could anyone explain how question 9 of Networks is D? I had B, not sure how it could be D? Thanks!!

Cut A and Cut B are immediately disregarded as it does not stop the flow from both car parks to the exit.
The capacity of:
Cut C = 20 (5+12+3)
Cut D = 18 (5+10+3)
Cut E = 22 (5+11+6)
Therefore, the minimum cut and thus maximum flow is Cut D.

[Dan1995]

Hello could anyone explain how question 9 of Networks is D? I had B, not sure how it could be D? Thanks!!

I explained that question in detail in an earlier post

[Kayleejohns]

Oh, thanks everyone, I hadn't even noticed the other car park until now, woops

[leajasmine]

I don"t understand how Q2 in business maths is C? I got A. Can someone please explain how they worked that out? Thanks in advance

[QTPi]

I don"t understand how Q2 in business maths is C? I got A. Can someone please explain how they worked that out? Thanks in advance

So you were pretty much half way there with the answer, i'm assuming you did 120 divide by 15000 which was 0.008 (A) however the question asked as a percentage so then you would need to multiply it by 100 to get 0.80% (C) I hope that helps 

[Daniel55555555]

I got E for Q5 in core