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Mystery

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Exam 2 - 2007 POST YOUR ANSWERS!
« on: November 12, 2007, 02:07:41 pm »
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Multiple Choice:

1.A
2.D
3.D
4.C
5.D
6.D
7.A
8.D
9.E

10.E
11.E
12.C
13.C
14.C
15.B
16.E
17.B
18.D

19.A
20.D
21.D
22.C

sHORT aNSWER (only some):

1.a) 1000/(pi x r^2)
1.b) (2000/r) + (2 x pi x r^2)
1.c) r = cube root(500/pi)
1.d) 553.58cm^2

2.a) m=0 (wtf vcaa?? how do you do this crap!!)
2.d) after 9.20am (not inclusive)
2.e) 2.44 hours
2.f)i) p = 10, q = 3/2
2.f)ii) 40.625min
2.g) 430 minutes to spare! (lol what was I doing...)

4.d) 6.00 units^2

5.b) 7/8
5.c) 1/7
5.d) 0.9709

*WARNING* 100% BIAS ANSWERS, DO NOT TAKE THESE AS SERIOUS, THEY ARE MY ANSWERS and MY ANSWERS ONLY. (I am not an Ahmad, all I require is 25 in methods)


post your Answers HERE and compare!




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hifer

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Exam 2 - 2007 POST YOUR ANSWERS!
« Reply #1 on: November 12, 2007, 02:35:16 pm »
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i think i got A for MC 3, E for Q22

For short ans:
1c) u can simplify cube rt(500) to 5 cube rt(4)
2a) m = 8000
2e) i got an exact ans of 2hr 40min
2g) i think 3s sth?

rest of short ans should be pretty much the same..

hifer

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« Reply #2 on: November 12, 2007, 02:36:40 pm »
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omg.. u have no more exams? i'm soooo jealous 3 to go.. >< all diff subjs -.-"

keik674

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Exam 2 - 2007 POST YOUR ANSWERS!
« Reply #3 on: November 12, 2007, 02:39:03 pm »
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For MC i got
A
D
A
C
D
A
A
B
E

E
E
C
D
A
B
E
C
D

A
A
A
E

Odette

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Exam 2 - 2007 POST YOUR ANSWERS!
« Reply #4 on: November 12, 2007, 02:39:40 pm »
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You are sooooooooooooooooo lucky!! i have 2 exams left sigh

melanie.dee

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« Reply #5 on: November 12, 2007, 02:44:47 pm »
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omg fuck i just realised i made the stupidest mistake EVER

for the amount of time its undr 1250.. my x values were like 28/3 and 32/3 or something like that.. anyway i counted that gap as 4 hours. instead of 4/3 hours! which x2 would have been 2.666 which is 2hr 40 mins which is right but instead i put 8 hours cos i copeltely was NOT thinking. FUCK FUCK i hate stupid mistakes

asa.hoshi

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« Reply #6 on: November 12, 2007, 02:46:45 pm »
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cubic equation
y=-2x^3-6x^2+2x+6
I KNOW WHAT YOU DID LAST SUMMER!!

melanie.dee

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« Reply #7 on: November 12, 2007, 02:48:40 pm »
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ps. um wait, what was the difference between the cas and normal exams? cos all these questions you speak of seem to be ones i did in the cas exam? so confused

ltee

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Exam 2 - 2007 POST YOUR ANSWERS!
« Reply #8 on: November 12, 2007, 02:54:24 pm »
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i got 1.337*2 for total hours .. so it about about 2.67 hours overall .. so i think i got that right ... please let it be haha - i think i did write 2 hours 40.2 minutes ..is that okay for an answer?

btw, hifer- with your 3 seconds. did you get it because of the 1.337 hour interval, before the concentration hit deadly again? cos i got like 2 . something seconds, but im not for sure what i got numerically
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Matt89

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« Reply #9 on: November 12, 2007, 02:56:41 pm »
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Quote from: "keik674"
For MC i got
A
D
A
C
D
A
A
B
E

E
E
C
D
A
B
E
C
D

A
A
A
E


I got exactly that

Quote from: "asa.hoshi"
cubic equation
y=-2x^3-6x^2+2x+6


Did we have to expand it? I left it factorised

asa.hoshi

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« Reply #10 on: November 12, 2007, 02:59:29 pm »
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i used my calc to solve it.

hrm. its 160min isn't?
I KNOW WHAT YOU DID LAST SUMMER!!

ltee

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« Reply #11 on: November 12, 2007, 03:02:00 pm »
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^ 160 minutes is 2 hours and 40 minutes ...
 

 160 divide by 60 is 2.67 .. .67*60 is 40 minutes.

so yes, we are correct
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hifer

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« Reply #12 on: November 12, 2007, 03:03:40 pm »
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Quote from: "ltee"
i got 1.337*2 for total hours .. so it about about 2.67 hours overall .. so i think i got that right ... please let it be haha - i think i did write 2 hours 40.2 minutes ..is that okay for an answer?

btw, hifer- with your 3 seconds. did you get it because of the 1.337 hour interval, before the concentration hit deadly again? cos i got like 2 . something seconds, but im not for sure what i got numerically


ya.. i couldn't really rmb it was 2 or 3 sec i guess

asa.hoshi

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« Reply #13 on: November 12, 2007, 03:05:06 pm »
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Quote from: "ltee"
^ 160 minutes is 2 hours and 40 minutes ...
 

 160 divide by 60 is 2.67 .. .67*60 is 40 minutes.

so yes, we are correct
but i think for some reason i wrote 180 minutes. :S oh well. there goes 1 mark. lost about 2000000000000 marks. LOL altogether...
I KNOW WHAT YOU DID LAST SUMMER!!

Matt89

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« Reply #14 on: November 12, 2007, 03:12:07 pm »
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Did Indiana...i mean, Tasmania Jones escape with 3.75 seconds remaining?