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#6476 2016-02-19 18:02:51
- math9maniac
- Member
- From: Tema
- Registered: 2015-03-30
- Posts: 443
Re: 10 second questions
Only a friend tells you your face is dirty.
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#6477 2016-02-19 18:10:21
- math9maniac
- Member
- From: Tema
- Registered: 2015-03-30
- Posts: 443
Re: 10 second questions
Only a friend tells you your face is dirty.
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#6478 2016-02-19 18:54:07
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,281
Re: 10 second questions
Hi math9maniac,
The solutions #5668 and #5669 are both correct! Marvelous!
#5670. A spherical solid of radius 18 cm is melted and recast into three solid spherical spheres of different sizes. If the radii of two spheres are 2 cm and 12 cm, find the radius of the third sphere.
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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#6479 2016-02-20 01:46:53
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#6480 2016-02-20 08:57:47
- math9maniac
- Member
- From: Tema
- Registered: 2015-03-30
- Posts: 443
Re: 10 second questions
Only a friend tells you your face is dirty.
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#6481 2016-02-20 17:19:43
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,281
Re: 10 second questions
Hi bobbym and math9maniac,
The solution #5670 is correct! Brilliant!
#5671. The side of a square is 10 cm. Find the area of circumscribed and inscribed circles (two places after the decimal).
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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#6482 2016-02-20 19:00:23
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#6483 2016-02-20 21:49:19
- math9maniac
- Member
- From: Tema
- Registered: 2015-03-30
- Posts: 443
Re: 10 second questions
Only a friend tells you your face is dirty.
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#6484 2016-02-20 23:41:29
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,281
Re: 10 second questions
Hi bobbym and math9maniac,
The solution #5671 is correct! Marvelous!
#5672. Find the values for 'k' for which the roots are real and equal in each of the following equations:
.
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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#6485 2016-02-21 02:50:37
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#6486 2016-02-21 17:08:43
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,281
Re: 10 second questions
Hi bobbym,
The solution #5672 (two parts) is correct! Brilliant!
#5673. In each of the following, one of the six trigonometric ratios is given. Find the values of the other trigonometric ratios.
.
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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#6487 2016-02-21 18:58:16
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: 10 second questions
Last edited by Monox D. I-Fly (2016-02-21 19:03:05)
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
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#6488 2016-02-21 23:51:42
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,281
Re: 10 second questions
Hi Monox D. I-Fly,
The solution #5673 (both parts) are correct! Outstanding!
(The only trivial error in the solution #5673 (i) (e), can be overlooked).
#5674. If
, find the value of .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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#6489 2016-02-22 00:44:05
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: 10 second questions
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
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#6490 2016-02-22 02:06:07
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#6491 2016-02-22 17:08:30
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,281
Re: 10 second questions
Hi Monox D. I-Fly and bobbym,
The solution #5674 is correct! Excellent!
#5675. A bag contains 6 red, 8 black, and 4 white balls. One ball is drawn at random. What is the probability that ball drawn is not black?
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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#6492 2016-02-22 19:34:30
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#6493 2016-02-22 23:54:23
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,281
Re: 10 second questions
Hi bobbym,
The solution #5675 is correct! Excellent!
#5676. Evaluate:
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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#6494 2016-02-23 01:22:25
- Monox D. I-Fly
- Member
- From: Indonesia
- Registered: 2015-12-02
- Posts: 2,000
Re: 10 second questions
Last edited by Monox D. I-Fly (2016-02-23 01:22:45)
Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away.
May his adventurous soul rest in peace at heaven.
Offline
#6495 2016-02-23 03:49:53
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#6496 2016-02-23 05:24:31
- math9maniac
- Member
- From: Tema
- Registered: 2015-03-30
- Posts: 443
Re: 10 second questions
Last edited by math9maniac (2016-02-23 05:25:34)
Only a friend tells you your face is dirty.
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#6497 2016-02-23 17:38:19
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,281
Re: 10 second questions
Hi Monox D. I-Fly, bobbym, and math9maniac,
The solution #5676 is correct (7/4). Excellent, bobbym and math9maniac!
#5677. Find the value of 'x':
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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#6498 2016-02-23 20:24:33
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline
#6499 2016-02-23 21:11:35
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,281
Re: 10 second questions
Hi bobbym,
The solution #5677 is correct! Good work!
#5678. Solve:
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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#6500 2016-02-24 00:58:57
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
Offline