10 second questions

espeon · 2006-10-09 06:17:35

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

Patrick · 2006-10-09 06:36:50

Wow, can you really see through planets ?

espeon · 2006-10-09 07:03:33

what does that have to do with anything?

Devantè · 2006-10-09 17:53:19

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.

Jai Ganesh · 2006-10-09 20:30:19

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!

Toast · 2006-10-10 02:26:10

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

Devantè · 2006-10-10 02:28:50

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

Jai Ganesh · 2006-10-10 15:51:33

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?

Devantè · 2006-10-10 18:35:16

43. Multiply a natural logarithm by 0.4343 to convert it to a common logarithm
44. ln(10) is about 2.303

Jai Ganesh · 2006-10-10 20:48:22

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

Devantè · 2006-10-10 21:03:01

Go me.

Jai Ganesh · 2006-10-12 04:01:26

45. How many Watts is a Horsepower?

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

Devantè · 2006-10-12 04:14:26

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

Jai Ganesh · 2006-10-12 04:17:40

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.

Devantè · 2006-10-12 04:21:06

Was #46 part-correct, though?

Jai Ganesh · 2006-10-12 04:23:24

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

Devantè · 2006-10-12 04:29:01

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?

Jai Ganesh · 2006-10-13 03:41:11

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

Devantè · 2006-10-14 05:07:14

Also found this: http://gemini.tntech.edu/~tfurtsch/scihist/avogadro.htm

Jai Ganesh · 2006-10-14 18:21:26

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?

Devantè · 2006-10-14 18:58:10

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

Jai Ganesh · 2006-10-14 18:59:59

All your answers are correct.
Excellent, Devante'

Jai Ganesh · 2006-10-14 23:32:06

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)?

Devantè · 2006-10-14 23:39:55

51. 1 Radian = 57.2957795 degrees
52. Yes
53. [Deleted Incorrect Answer]

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

mathsyperson · 2006-10-15 00:34:53

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

Math Is Fun Forum

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

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

Re: 10 second questions

Board footer