Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
#5951 2015-08-22 18:41:11
- 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
#5952 2015-08-22 20:11:48
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5467 is perfec! Excellent!
#5468. Two dice are thrown simultaneously. What is the probability that the sum of the numbers appearing on the dice is
(i) 7?
(ii) not a prime 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.
Offline
#5953 2015-08-24 21:34:22
- 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
#5954 2015-08-25 00:26:55
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5468 in correct! Good work!
#5469. The radii of two circles are 19 centimeters and 9 centimeters respectively. Find the radius of the circle which has circuference equal to the sum of the circumferences of the two circles.
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.
Offline
#5955 2015-08-25 20:15:18
- 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
#5956 2015-08-25 23:42:55
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym
The solution #5469 is perfect! Excellent!
#5470. The radii of two circles are 8 centimeters and 6 centimeters respectively. Find the radius of the circle having area equal to the sum of the areas of the two circles.
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.
Offline
#5957 2015-08-27 10:03:45
- math9maniac
- Member
- From: Tema
- Registered: 2015-03-30
- Posts: 443
Re: 10 second questions
Is there any explanation or theory behind this?
Last edited by math9maniac (2015-08-27 10:04:27)
Only a friend tells you your face is dirty.
Offline
#5958 2015-08-27 11:12:33
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
Yes, Pythagorean triples.
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
#5959 2015-08-27 16:04:56
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi math9maniac and bobbym,
The solution #5470 is correct! Good work, math9maniac and bobbym!
#5471. Find the area of a sector of a circle with radius 6 centimeters if angle of the sector is 60 degrees.
Last edited by Jai Ganesh (2015-08-27 16:43:58)
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.
Offline
#5960 2015-08-27 21:43:10
- 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.
Offline
#5961 2015-08-27 23:06:14
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5471 is correct! Splendid!
#5472. If the perimeter of a semi-circular protractor is 36 centimeters, find its diameter.
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.
Offline
#5962 2015-08-28 07:26:27
- math9maniac
- Member
- From: Tema
- Registered: 2015-03-30
- Posts: 443
Re: 10 second questions
Only a friend tells you your face is dirty.
Offline
#5963 2015-08-28 14:35:04
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi math9maniac,
#5473. If the perimeter of a semicircular protractor is 66 centimeters, find the diameter of the protractor.
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.
Offline
#5964 2015-08-28 19:30:09
- 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
#5965 2015-08-28 20:21:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5473 is correct! Neat work!
#5474. Show that the points (3, 2), (0, 5), (-3, 2), and (0,-1) are the vertices of a parallelogram.
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.
Offline
#5966 2015-09-01 18:22:24
- 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
#5967 2015-09-01 19:41:09
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5474 is correct! Neat work!
#5475. 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.
Offline
#5968 2015-09-02 10:41:10
#5969 2015-09-02 16:47:06
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi zetafunc,
The solution #5475 is correct! Neat work!
#5476. Prove that the area of a triangle whose vertices are (t, t - 2), (t + 2, t + 2), and (t + 3, t) is independent of t.
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.
Offline
#5970 2015-09-03 12:19:38
- 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
#5971 2015-09-03 14:27:24
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5476 is correct! Marvelous!
#5477. Find the area of a triangle whose vertices are
(a,c + a), (a,c), and (-a,c - a).
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.
Offline
#5972 2015-09-04 02:09:56
- 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
#5973 2015-09-04 17:05:52
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,422
Re: 10 second questions
Hi bobbym,
The solution #5477 is correct! Immaculate!
#5478. The perimeter of a rectangular field is 82 centimeters and its area is 400 square meters. Find the breadth of the rectangle.
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.
Offline
#5974 2015-09-04 23:55:14
#5975 2015-09-05 02:23:25
- 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