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#5926 2015-07-28 14:58:24
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5456 is perfect! Good work!
#5457. If the total surface area of a solid hemisphere is 462 square centimeters, find its volume.
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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#5927 2015-07-30 14:32:42
- 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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#5928 2015-07-30 15:55:52
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5457 is correct! Well done!
#5458. 150 spherical balls, each of diameter 1.4 centimeters, are dropped into a cylindrical vessel of diameter 7 centimeters containing some water, whih are completely immersed in water. Find the rise in in the level of water in the vessel. .
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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#5929 2015-08-03 18:34:54
- 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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#5930 2015-08-03 19:53:42
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
#5459. If 2 is a square root of the quadratic equation
and the quadratic equation , find the value of k.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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#5931 2015-08-04 12:32:12
- 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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#5932 2015-08-04 13:49:12
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
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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#5933 2015-08-04 18:40:16
- 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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#5934 2015-08-04 19:22:21
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
I concede I made a mistake in problem in #5459. Regretted.
#5460. Find the value of P for which the points (P + 1,2P - 2), (P - 1,P), and (P - 3,2P - 6) are collinear.
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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#5935 2015-08-09 09:33:14
- 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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#5936 2015-08-09 14:23:38
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5460 is correct! Splendid!
#5461. Cards numbered 1 to 30 are put in a bag. A card is drawn at random from this bag. Find the probability that the number on the drawn card is
(i) not divisible by 3
(ii) a prime number greater than 7
(iii) not a perfect square 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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#5937 2015-08-09 21:05:58
- 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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#5938 2015-08-09 22:07:30
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5461 is almost correct! Excellent, bobbym! Almost correct, because
#5462. A hemispherical depression is cut out from one face of a cubical block of side 7 centimeters, such that the diameter of the hemisphere is equal to the edge of of the cube. Find the surface area of the remaining solid.
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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#5939 2015-08-12 04:00:32
- 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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#5940 2015-08-12 09:32:38
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
#5463. The sum of two numbers is is 15 and the sum of their reciprocals is
. Find the numbers.Last edited by Jai Ganesh (2015-08-12 18:50:19)
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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#5941 2015-08-12 18:51:10
- 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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#5942 2015-08-12 19:04:15
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5463 is orrect! Neat work!
#5464. A cuboidal metal plate of 1 centimeter thickness, 9 centimeters breadth, and 81 centimeters length is melted into a cube. Find the surface area of the cube.
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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#5943 2015-08-12 19:39:08
- 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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#5944 2015-08-12 23:31:01
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5464 is orret! Neat work!
#5465.If the points A (4,3) and B (x,5) are on the circle O (2,3), 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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#5945 2015-08-13 17:52:49
- 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
#5946 2015-08-13 19:26:26
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
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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#5947 2015-08-18 17:52:33
- 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
#5948 2015-08-18 20:12:29
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5465 is correct! Good work!
#5466. Which term of the Arithmetic Progression : 3, 15, 27, 39, ... will be 120 more than its 21st term?
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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#5949 2015-08-21 21:21:46
- 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
#5950 2015-08-22 12:27:03
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5466 is correct! Good work!
#5467. A solid metallic sphere of radius 8 centimeters is melted and recast into small solid spherical balls of radius 0. 3 centimeters. Find the number of balls formed.
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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