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#2851 2011-08-02 00:48:50
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
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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#2852 2011-08-02 17:33:03
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solutions #3088 and #3089 are correct. Good work!
#3090. Find the slope of a line which is perpendicular to a line passing through (0,6) and (-3,1).
#3091. Find a if the slope of the line joining (-6,13) and (3,a) is
.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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#2853 2011-08-02 17:40:50
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
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
#2854 2011-08-03 00:05:30
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solutions #3090 and #3091 are perfect. Well done!
#3092. If m is the slope of a line parallel to 3x + 4y + 7 = 0, find the value of 16m[sup]2[/sup].
#3093. If 3x - 2y + 4 = 0 and ax + 4y + 3 = 0 are parallel lines, find the value of '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.
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#2855 2011-08-03 00:15:35
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: 10 second questions
hi ganesh
Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.
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#2856 2011-08-03 00:46:50
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
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
#2857 2011-08-03 01:24:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi anonimnystefy and bobbym,
The solution #3092 is correct. Well done!
The solution #3093 I get is -6.
#3094. Find the equation of a line parallel to X axis and passing through the point (-4,7).
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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#2858 2011-08-03 01:29:07
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
hi ganesh;
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
#2859 2011-08-03 02:50:39
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: 10 second questions
hi ganesh
Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.
Offline
#2860 2011-08-03 17:01:32
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym and anonimnystefy,
The solution #3094 is correct. Well done!
#3095. Find the equation of a straight line whose
(i) slope is 4 and y intercept is -3
(ii) Inclination is 30[sup]o[/sup] and y intercept is 5.
#3096. Calculate the slope and y intercept of the line 2x - 3y + 1 = 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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#2861 2011-08-03 17:13:10
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
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
#2862 2011-08-04 00:08:58
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solution #3095 (i) is correct. Regarding (ii), I get
.The solution #3096 (both parts) is correct. Good work!
#3097. Find the equation of a straight line passing through (-4,5) and having slope
.#3098. A straight line passes through (1,2) and has the equation y = 2x + k. Find 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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#2863 2011-08-04 00:33:26
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: 10 second questions
hi ganesh
Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.
Offline
#2864 2011-08-04 01:09:38
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi anonimnystefy,
The solutions #3097 and #3098 are correct. Good work!
#3099. If a line passes through the mid point of AB where A is (3,0) and B is (5,4) and makes an angle 60[sup]o[/sup] with X axis, find its equation.
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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#2865 2011-08-04 02:15:31
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
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
#2866 2011-08-04 02:56:58
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: 10 second questions
hi ganesh
Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.
Offline
#2867 2011-08-04 16:16:41
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym and anonimnystefy,
The solution #3099
#3100. Find the equation of the line cutting off intercepts
and on the X axis and Y axis respectively.#3101. Find the equation of the line passing through (5,-3) and whose intercepts on the axes are 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.
Offline
#2868 2011-08-04 16:37:50
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
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
#2869 2011-08-04 23:32:23
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solutions #3100 and #3101 are correct. Excellent!
#3102.
#3103.
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
#2870 2011-08-04 23:53:32
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
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
#2871 2011-08-05 21:31:09
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solution #3102 is correct. Excellent!
#3104. Find the value of k for which the given equation 9x[sup]2[/sup] + 3kx + 4 = 0 has real and equal roots.
#3105. Find the value of k for which the equation (k - 12)x[sup]2[/sup] + 2(k - 12)x + 2 = 0 has equal roots.
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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#2872 2011-08-05 22:02:25
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
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
#2873 2011-08-05 23:48:38
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solutions #3104 and 3105 are correct. Neat job!
#3106. A hollow spherical shell has an inner radius of 8 cm. If the volume of the material is
c.c., find the thickness of the shell.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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#2874 2011-08-05 23:54:14
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: 10 second questions
hi ganesh
Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.
Offline
#2875 2011-08-06 00:01:47
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
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