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#3326 2014-12-13 03:34:38
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
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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#3327 2014-12-13 15:10:14
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi bobbym,
The solution #2156 is correct. Excellent!
#2157. Find the common root of the equation x² - bx + c = 0 and x² + bx - a = 0.
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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#3328 2014-12-13 20:51:32
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi,
#2158. Find the equation of a straight line having slope 3 and y-intercept -4.
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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#3329 2014-12-13 21:12:07
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
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
#3330 2014-12-14 17:14:53
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi bobbym,
The solution #2158 is perfect. Neat job!
#2159. 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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#3331 2014-12-15 00:30:44
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
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
#3332 2014-12-15 15:38:16
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi bobbym,
The solution #2159 is correct. Good work!
#2160. For a Geometric Progression,
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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#3333 2014-12-16 00:23:35
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi,
#2161. If one of the roots of the equation
is , find the other root and also 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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#3334 2014-12-16 01:04:38
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
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
#3335 2014-12-16 01:47:46
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi bobbym,
Regarding .
#2162. Find the value
.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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#3336 2014-12-16 07:15:40
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
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
#3337 2014-12-16 17:22:41
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi bobbym,
The solution #2162 is correct. Splendid
#2163. In a group of students, 65 play football, 45 play hockey, 20 play football and hockey, 25 play football and basket ball, 15 play hockey and basket ball and 8 play all the three games. Find the number of students in the group.
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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#3338 2014-12-17 00:18:13
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi,
#2164. Find the equation of the straight line which passes through the point (3,4) and have intercepts on the axes equal in magnitude but opposite in sign.
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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#3339 2014-12-17 14:12:25
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
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
#3340 2014-12-17 16:25:12
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi bobbym,
The solution #2164 is correct. Excellent!
Regarding #2163, Formulas page .
#2165. If f(x) = x² + 5, find f(-4).
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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#3341 2014-12-17 21:53:28
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
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
#3342 2014-12-18 17:36:40
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi bobbym.
The solution #2165 is correct. Good work!
#2166. The length of the side of a square is 4 √2 centimeters. Find the length of the diagonal of the square.
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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#3343 2014-12-18 21:05:48
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
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
#3344 2014-12-18 23:38:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi bobbym,
The solution #2166 is correct. Good work!
#2167. Find the value of
if .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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#3345 2014-12-19 15:34:16
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi,
#2168. Find the equation of the straight line passing through the point (9,-1) and having its x-intercept thrice as its y-intercept.
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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#3346 2014-12-19 20:14:34
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
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
#3347 2014-12-20 00:49:02
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi bobbym,
#2169. If
are the roots of the equation , 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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#3348 2014-12-20 05:08:10
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
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
#3349 2014-12-21 00:12:12
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi bobbym,
The solution #2169 is correct. Splendid!
#2170. Find the equation of the straight line passing through the point (2,1) and parallel to the the line joining the points (1,3) and (-3,1).
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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#3350 2014-12-21 05:29:07
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: Oral puzzles
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