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#5326 2014-11-05 16:23:15

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi bobbym,

The solution #5236 is correct. Brilliant!

#5237. Examine whether the lines

and
are parallel or not. Find their slope(s).


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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#5327 2014-11-05 21:05:12

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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#5328 2014-11-06 00:13:58

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi bobbym,

The solution #5237 is correct. Marvelous!

#5238. If kx - 3y - 14 = 0 and 3x + 4y + 10 = 0 are perpendicular to each other, 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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#5329 2014-11-06 14:40:43

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi,

#5239. Find the slopes of AB and BC: A(-4,-1), B(-2,-4), C(4,0) and D(2,3) and show what they are the vertices of a rectangle (using the concept of slope).


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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#5330 2014-11-06 19:37:07

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

#5331 2014-11-07 00:17:29

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

hi bobbym,

The solution #5239 is perfect. Fantastic!

#5240. Prove that (0,5), (-2,-2), (5,0) and (7,7) are the slopes of a rhombus (using the concept of slope).


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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#5332 2014-11-07 03:37:26

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

#5333 2014-11-07 12:15:42

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi bobbym,

#5241. If M is the midpoint of the line segment joining A(2a,0) and B(0,2b) and O is the origin, show that M is equidistant from O, A and B.


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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#5334 2014-11-07 20:30:41

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

#5335 2014-11-08 00:06:51

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi bobbym,

The solution #5240 is correct. Excellent!

#5242. Find the area of the quadrilateral whose vertices are (-1,-6), (-3,-9), (5,-8) and (3,9).


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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#5336 2014-11-08 01:02:15

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

#5337 2014-11-08 14:43:58

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi bobbym,

The solution #5242 is correct. Brilliant!

#5243. Find the ratio in which the point (m,6) divides the line segment joining the points A(-2,2) and B(3,7). Also find the value of m.


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

#5338 2014-11-08 17:37:08

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.

Offline

#5339 2014-11-09 00:31:12

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi bobbym,

The solution #5243 is perfect. Remarkable!

#5244. If the area of a quadrilateral whose vertices, taken in order, are (1,2), (-3,4), (-5,6)and (4,k) is 43 square units, 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.

Offline

#5340 2014-11-09 01:31:04

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

#5341 2014-11-09 14:43:30

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi bobbym,

The solution #5244 is correct.Eexcellent!

#5245. Solve : 2(x + 2) = 3(y + 1) = 2(4x + 8).


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

#5342 2014-11-09 15:52:58

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.

Offline

#5343 2014-11-10 00:50:00

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi bobbym,

The solution #5245 is correct. Excellent!

#5246. Solve : 0.3x - 0.1y = -0.9; 0.2x + 0.1y = 0.4.


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.

Offline

#5344 2014-11-10 02:15:20

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

#5345 2014-11-10 15:16:46

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi bobbym,

The solution #5246 is perfect. Marvelous!

#5247. Solve : x + y - 8 = x + 2y - 14 = 3x + 2y - 10.


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

#5346 2014-11-11 00:00:04

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi,

#5248. The sum of two numbers is 55 and their difference is 7. Find the numbers.


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

#5347 2014-11-11 03:59:34

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

#5348 2014-11-11 14:37:33

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi bobbym,

the solution #5248 is correct. Marvelous!

#5249. Find the zeros of the quadratic polynomial :

.


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

#5349 2014-11-11 19:16:30

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

#5350 2014-11-11 23:47:46

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 46,230

Re: 10 second questions

Hi bobbym,

The solution(s) is/are correct. Excellent!

#5250. Find the zeros of the polynomial

.


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

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