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[Puzzle / Quiz] Portal 2 giveaway!

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Mildan

Hello and welcome to my first puzzle/quiz tryout.

This is a mathmatical quiz / puzzle, at around a new high schooler level, and if not you could quickly look up some stuff and try to figure it out by that, anyways... As the title says, it is for Portal 2!

Giveaway ends the 24/6/12 - Which means you have a little more than 6 days.

Start here!

If you're not into the puzzles.. You can enter my first giveaway here!

Do leave a comment on what you think is good, or if I made an error, because that would suck, but otherwise, best of luck!

IMPORTANT: Seems like I made a typo on question 3, it's supposed to be: ...+ 4^(-0.5) -...
Sorry for the confusion!

IMPORTANT: If you run into a question and you don't think it has an answer, try 0 in an Ascii table and type that in (begin with capital letter) - Oh and it is not the char you type in, it is the description.

IMPORTANT: Part 2, question 3 is lacking a + sign. 1st line is supposed to be 3x + 4y - 23 = 0, again.. So sorry!

IMPORTANT: Part 2, question 5... I was an idiot.. The middle part of it is "x = 3", instead of 2.9 as it really should have been since I was looking at it wrong. Sorry >.<

IMPORTANT: Part 3, question 4... I have no idea what I was doing, the correct answers are "B = 26.2, C = 33.8, a = 9.03" but somehow I managed to screw that up. If you hit those numbers, you are awesome! Here's the answer that I ... for some reason put in there. "a = 3.9, B = 52.3, C = 85.7" Again.. Terribly sorry for these mistakes.

A little hint for you people, if you're having problems with part 2 question 2, remember what you can and what you cannot divide with.

1 decade ago*

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129 Comments
subajk

Part 3

Does anyone got a 2 question solved correctly? I cant get it right, altho the answer seems correct

1 decade ago
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NoClue

I am not that used with mathematical problems formulated in english , and even tho i have basic understanding of english it's hard to follow what i'm asked to do. i've got to some arcsin that eventually went complex O.o

1 decade ago
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Vercas

I found only one answer for question 5 of part 2:
(6 - sqrt(86))/5

Can't get past question 4...
The answer is a complex number... How on Earth do I input it?

1 decade ago
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Paladyn85

Check what quiz author wrote above.

1 decade ago
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Vercas

Enlighten me. -.-

1 decade ago
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Paladyn85

It was to Question 4.
Question 5 is something i can't pass (but can`t say why...).

1 decade ago
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Vercas

The only answer that fits question 5 of part 2 is an irrational number rounded to -0.1

1 decade ago
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Paladyn85

Not exacly... but should we round such numbers to ONE DIGIT = 0 or something like you did... this is problem for me.

1 decade ago
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Vercas

"Answer has only one decimal in it."

Yes exactly. I've got no clue how on Earth did you try to solve that identity but that is the only valid answer.

Anyone who said otherwise must have used Wolfram... -.-
Wolfram is highly unreliable for this type of computations.

1 decade ago
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dineshmike

Stuck on Part 3 Question 4.
Can't get the exact answer as the question want.
Do we have to use Cosine Rule to calculate all of variables or can we use Sine Rule once we find a variable using Cosine rule?

1 decade ago
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Mildan

My bad (again), OP edited.

1 decade ago
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Beriol

I really don't get the anwser for Q5 part 2... I tried solving it by hand and I get sqrt(59) and sqrt(86)... how can the solution be a finite number?

1 decade ago
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Leaky

Round it to one digit after decimal point :p

1 decade ago
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Beriol

But it says that online one anweser has decimal on it... that is if I understood the meaning right!
"Answer has only one decimal in it."

1 decade ago
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Paladyn85

Ok... Im starting to hate this one ;) There are four digits as answer. Two below 0 and two above 0. First two are in {-1,0) and second two in {2,4} (if we count answer mistake itll be {3,4}). Is this right? If yes... i don`t know how to format it well...

1 decade ago
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Beriol

I don't know what to write either, nothing works...

1 decade ago
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Paladyn85

Mildan (once again thanks for great puzzle - best one i`ve done here) if i write you answers to Q5, could you tell me what should i write into Quiz form? :>

1 decade ago
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Heretic

Part 4, Q5, I think equation 1 should read: 1st: 2y - 3x + 6 = 0

1 decade ago
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Mildan

Yes there is a + there... Again typo on my part...

1 decade ago
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Ninjabunnyz

All was going well until trigonometry. Thanks though for the puzzle :D

1 decade ago
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Max422

so many typos there...

1 decade ago
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Closed 1 decade ago by Mildan.