Can you name the answers to the following math questions kinda quickly? by sproutcm

Can you name the answers to the following math questions kinda quickly?

created by sproutcm

Enter an answer in the box below
Correctly named answers will show up below
Click any empty Math Question or Snark to answer for that location
WARNING: This quiz is best viewed in Safari, Chrome or Firefox, in order to properly display some mathematical symbols. Feel free to use scrap paper; I sure needed it.
This quiz has not been verified by Sporcle

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Show Missed Answers

Math Question	Snark	#
216^⅓		6
[(4-9)-(2+3)]/(2-7)		2
⎣π⎦		3
e^iπ + 1		0
cos² 75⁰ + sin² 75⁰		1
Solve for x: 6x + 5 = 47		7
Perimeter of a 3 x 3 square		12
17⁰		1
log ₇ 49		2
2⁵		32
ln 1		0
BE₁₆ in decimal		190
(6 - 2i)(3+i)		20
Solve for y:│2y - 7│= 2y + 3		1
cos 2π		1
(8 • 10 • 9)/(5 • 6 • 4)		6
0.024 ÷ 0.006		4
log 1000		3
Solve for x: x² - 8x + 15 = 0		3,5
⅕ + ⅖ + ⅗ + ⅘		2

Math Question	Snark	#
│-10│-│-3│		7
1+2+3+4+5+6+7+8+9+10		55
tan 45⁰		1
101010₂ in decimal		42
2 x (7 + 5) x 3		72
3^3 + 3		30
2.4 + 1.6 ÷ 0.2 - 7.4		3
10!/(8! • 2!)		45
(⅓ - ⅙ - ⅛)^-1		24
3^{2^2¹}		81
(3 + 2i)²		5+12i
(2 + ⅓)/(1 + ⅙)		2
Solve for z: 3 = - 2 + √(z+5)		20
64^⅔		16
5!		120
Solve for b: 5² + b² = 13²		12
1234 - 5 - 432		797
csc 30⁰		2
log 35 + 2 log 2 + log 5 - log 7		2
⎡e⎤		3

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Speedy Hard Math Quiz

by sproutcm

Created Jul 29, 2010 in Science
Game Plays 2,819

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	Hejman:	Jul 30th, 2010 at 03:52 GMT	4 points
	Uh, Dr. Sprout, my brain is full. Can I please be excused from class?

	puckett86:	Jul 30th, 2010 at 04:19 GMT	3 points
	1+2+3+4+5+6+7+8+9+10 = 55. In general ∑{i=1 to n} i = n(n+1)/2. I don't know what you're accepting (since you only reveal text), but it's wrong because I tried 55 several times.

	sproutcm:	Jul 30th, 2010 at 04:22 GMT	1 point
	@puckett86 Oops, thanks. originally, I had it as 1-11 (done correctly), but then it didn't fit in the space, so I made it 1-10 and then typed in the sum wrong, somehow. Thanks!

	paragon12321:	Jul 30th, 2010 at 06:36 GMT	1 point
	I was allowed to use scrap paper??? I'll be sure to read the directions next time. Now, if you'll excuse me, I need to pick up the bits of my brain that exploded everywhere.

	khouri92:	Jul 30th, 2010 at 07:43 GMT	2 points
	I wanted to see what some of the answers were but it didn't show at the end, please try putting them up because i don't understand some of the quiestions, but very challenging, thumbs up

	JM001:	Jul 30th, 2010 at 07:47 GMT	1 point
	I enjoyed this, but I had no idea what some of them were asking (worrying seeing as I'm supposed to be doing a maths degree; I really should try that going to lectures thing).

	artnc:	Jul 30th, 2010 at 12:36 GMT	2 points
	The floor and ceiling symbols rendered as empty squares in Chrome, which had me stumped for a while. Other than that, great quiz!

	selene314:	Jul 30th, 2010 at 13:51 GMT	2 points
	The floor/ceiling symbols and many of the fractions show up as squares in IE6 too. (I guess that's what I get for playing sporcle on my work computer)

	kcostell:	Jul 30th, 2010 at 14:18 GMT	2 points
	It would be helpful if you clarified that by "solve for x" you mean "type in only one value of x for which the equation holds"...I was trying things like "x=3 or x=5", "3,5", "3 and 5" etc. before I realized what you were looking for.

	sproutcm:	Jul 30th, 2010 at 14:21 GMT	2 points
	@Kcostell. Actually, if you type in 3 or 5, it should automatically give you credit. And if you type in the "variable =" versions of the answers, it should accept those as well.

	Pit_trout:	Jul 30th, 2010 at 14:42 GMT	1 point
	I'm in math grad school, and finished this with 7 seconds on the clock and my pulse racing! Great selection of problems, perfect timing (especially looking at the results stats). Agreed with @khouri92, though, it would be nice to have the actual answers displayed.

	dcbandicoot:	Jul 30th, 2010 at 15:25 GMT	4 points
	Just because you're in math grad school doesn't make you better at computation! Got it done with 3:10 left.. most of these have little tricks. Log 35-Log 7 = Log 5... Log 5 + Log 2 = 1 (Assuming log is base 10). cos^2x+sin^2= 1 always. FOILing isn't hard.. .024/.006 is just 24/6.. etc.

	dlutz77539:	Aug 7th, 2010 at 23:37 GMT	0 points
	Was there a way to make the fractions bigger on my screen?

	penguinman95:	Aug 21st, 2010 at 21:40 GMT	2 points
	What I did (on Internet Explorer) was go to Page, Zoom, and have it at 200% so I could see fractions.

	mitch23:	Aug 28th, 2010 at 04:07 GMT	1 point
	really fun quiz, great selection, but can you make the font bigger (if you are the one who does that) because there were about 4 problems that i couldnt read

	racefan12:	Sep 13th, 2010 at 16:26 GMT	2 points
	Remembering some old tricks from Number Sense--good times.

	wonderslime:	Sep 15th, 2010 at 19:32 GMT	1 point
	Wow... Math Ph.D. here, and my brain hurts. Those convert-to-decimal ones were the death of me... Awesome. :D

	WyvernSabres:	Oct 9th, 2010 at 12:53 GMT	0 points
	It's not like me to diss the legend that is sproutcm, but I thought the little comments on these were quite feeble and detracted from the quiz (which, in itself, was really great)!

	FinnegansDirge:	Mar 5th, 2011 at 23:02 GMT	1 point
	this was a great quiz with an interesting assortment of problems! I liked that many of them had shortcuts, but it still took me nearly the entire time to finish!!

	paulccarboni:	May 7th, 2011 at 03:30 GMT	1 point
	I never learned hex or change of base, so I left those two blank...then my inability to read killed me on two others. Great quiz!

	Degree:	Jun 6th, 2011 at 23:49 GMT	1 point
	Solid quiz, managed to get 30/40 without any paper. Really annoyed that I forgot the sin^2 + cos^2 = 1 identity because that cost me 7 marks back when I did my P1 exam. Grrr!

	Osiriz:	Aug 22nd, 2011 at 18:55 GMT	1 point
	Very difficult to see on Explorer. Was too bad, since i was excited to do some fractions and powers.

	kagomeshuko:	Sep 15th, 2011 at 05:33 GMT	1 point
	It's been years since I've had to do these! I've forgotten some of this stuff!

	chaotic_iak:	Dec 18th, 2011 at 06:47 GMT	0 points
	Fractions are too small. You should make them in the form like 1/3 instead of the single character ⅓. And I think "speedy" and "hard" are pretty misdirecting; there's plenty of time left for me (2m 51s) and it's not really hard; in high school level (not university nor olympiad levels).

	geogeorge:	Apr 9th, 2012 at 00:25 GMT	1 point
	I love math. I love this quiz. However, thought that pi looked a little to much like the variable n. Also anyone want to explain how to do the third one and the last one?