# Math Is Fun Forum

Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

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## #76 2006-10-09 06:17:35

espeon
Real Member
Registered: 2006-02-05
Posts: 2,586

### Re: 10 second questions

40. there are as many stars as there are in the universe(he never said u need an exact number now did he ^.^)

Presenting the Prinny dance.
Take this dood! Huh doood!!! HUH DOOOOD!?!? DOOD HUH!!!!!! DOOOOOOOOOOOOOOOOOOOOOOOOOD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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## #77 2006-10-09 06:36:50

Patrick
Real Member
Registered: 2006-02-24
Posts: 1,005

### Re: 10 second questions

Wow, can you really see through planets ?

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What music do I listen to? Clicky click

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## #78 2006-10-09 07:03:33

espeon
Real Member
Registered: 2006-02-05
Posts: 2,586

### Re: 10 second questions

what does that have to do with anything?

Presenting the Prinny dance.
Take this dood! Huh doood!!! HUH DOOOOD!?!? DOOD HUH!!!!!! DOOOOOOOOOOOOOOOOOOOOOOOOOD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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## #79 2006-10-09 17:53:19

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

### Re: 10 second questions

espeon wrote:

40. there are as many stars as there are in the universe(he never said u need an exact number now did he ^.^)

That answer makes absolutely no sense.

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## #80 2006-10-09 20:30:19

Jai Ganesh
Registered: 2005-06-28
Posts: 46,646

### Re: 10 second questions

Hairy thing....estimated average 80,000. Could be anywhere between 60,000 and 80,000. Sometimes even 0
Stars: Between 3,000 and 6,000. depending on visibilty etc.
mathsyperson is correct,  the formula is v+s=e+2,
Well done, mathsyperson!

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #81 2006-10-10 02:26:10

Toast
Real Member
Registered: 2006-10-08
Posts: 1,321

### Re: 10 second questions

lol we are supposed to solve these in 10 seconds? x_x

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## #82 2006-10-10 02:28:50

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

### Re: 10 second questions

Yes. We are masterminds, so no one can stop us expanding in wisdom and brain fluid.

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## #83 2006-10-10 15:51:33

Jai Ganesh
Registered: 2005-06-28
Posts: 46,646

### Re: 10 second questions

43. What is the significance of the number 0.4343 approximately in Mathematics?

44. And what is the significance of the number 2.303 approximately?

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #84 2006-10-10 18:35:16

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

### Re: 10 second questions

43. Multiply a natural logarithm by 0.4343 to convert it to a common logarithm

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## #85 2006-10-10 20:48:22

Jai Ganesh
Registered: 2005-06-28
Posts: 46,646

### Re: 10 second questions

Excellent, Devate`.
The two numbers are important to mathematicians.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #86 2006-10-10 21:03:01

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

Go me.

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## #87 2006-10-12 04:01:26

Jai Ganesh
Registered: 2005-06-28
Posts: 46,646

### Re: 10 second questions

45. How many Watts is a Horsepower?

46. What is the significance of the number 6.023 x 10^23?

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #88 2006-10-12 04:14:26

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

### Re: 10 second questions

45. 745.699872 watts
46. The most common use of exponents in science (hence the first half of the name) and the most important reason to get used to using exponents. In scientific notation numbers are represented as the product of a real number with only a single digit to the left of the decimal and the number 10 raised to an appropriate value. Thus: 602300000000000000000000 = 6.023 x 100000000000000000000000 There are 23 zeros to the left of the decimal in the right-most value. Thus: 100000000000000000000000 = 10^23 and 602300000000000000000000 = 6.023 x 10^23

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## #89 2006-10-12 04:17:40

Jai Ganesh
Registered: 2005-06-28
Posts: 46,646

### Re: 10 second questions

Regarding #46, I forgot to put approximately at the end of the question.
The number ought to be known both to mathematicans, and more importantly to scientists.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #90 2006-10-12 04:21:06

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

### Re: 10 second questions

Was #46 part-correct, though?

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## #91 2006-10-12 04:23:24

Jai Ganesh
Registered: 2005-06-28
Posts: 46,646

### Re: 10 second questions

To be fair, your answer has got nothing to do with the question.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #92 2006-10-12 04:29:01

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

### Re: 10 second questions

Aww.

Well, I do know that in the nineteenth century physicists measured the mass of one atom of hydrogen to be about 1/(6.023x10^23) grams.

Is that relevant?

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## #93 2006-10-13 03:41:11

Jai Ganesh
Registered: 2005-06-28
Posts: 46,646

### Re: 10 second questions

Oh yes, very well. 6.023x10^23 is Avogadro's Number.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #94 2006-10-14 05:07:14

Devantè
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Registered: 2006-07-14
Posts: 6,400

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## #95 2006-10-14 18:21:26

Jai Ganesh
Registered: 2005-06-28
Posts: 46,646

### Re: 10 second questions

47. What is the remainder when 1000 is divided by 7?

48. Roughly how many seconds is a day?

49. What's the difference between a billion in US and that in UK?

50. If the third angle of an isosceles triangle is 82° , what is the measure of the equal angles?

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #96 2006-10-14 18:58:10

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

### Re: 10 second questions

47. 6
48. 1440x60 = 86400
49. In the US, a billon has 9 zeros. In the UK, however a billion consists of 12 zeros.
50. 98/2 = 49

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## #97 2006-10-14 18:59:59

Jai Ganesh
Registered: 2005-06-28
Posts: 46,646

### Re: 10 second questions

Excellent, Devante'

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #98 2006-10-14 23:32:06

Jai Ganesh
Registered: 2005-06-28
Posts: 46,646

### Re: 10 second questions

51. Approximately how many degrees is a radian?

52. Is 768625 divisible by 11?

53. What is the slope of the line joining the points (11,7) and (21, 2)?

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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## #99 2006-10-14 23:39:55

Devantè
Real Member
Registered: 2006-07-14
Posts: 6,400

### Re: 10 second questions

51. 1 Radian = 57.2957795 degrees
52. Yes

Last edited by Devanté (2006-10-14 23:50:49)

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## #100 2006-10-15 00:34:53

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

### Re: 10 second questions

52. Yes, because 7-6+8-6+2-5 = 0, which is divisible by 11 and so 768625 also is.

53. (7-2)/(11-21) = -0.5

Why did the vector cross the road?
It wanted to be normal.

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