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#7326 2017-02-28 15:16:45

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

The solution #6089 is correct. Neat work, bobbym!

#6090. In an infinite Geometric Progression, each term is equal to three times the sum of all the terms that follow it and the sum of the first two terms is 15. Find the sum of the series to infinity.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7327 2017-02-28 21:17:36

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

#6091. What is the lateral surface area of a cone whose slant height is 10 cm and base diameter is 14 cm?

.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7328 2017-02-28 21:46:27

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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#7329 2017-03-01 00:28:00

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

The solution #6091 is correct. Good work, bobbym!

#6092. Solve:


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7330 2017-03-01 08:55:26

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.

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#7331 2017-03-01 16:55:09

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

The solutions in #6092 are correct. Neat work, bobbym!

#6093. Find the area of the quadrilateral ABCD given A(1,2), B(-3,4), C(-5,-6), and D(4,-1) (points are taken in order anticlockwise).


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7332 2017-03-01 22:30:50

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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#7333 2017-03-02 01:25:52

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

The solution #6093 is correct. Keep it up, bobbym!

#6094. Find the area of the quadrilateral PQRS given P(5,-2), Q(3,4), R(4,-7), and S(1,1) (points are not in order).


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7334 2017-03-02 05:00:58

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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#7335 2017-03-02 18:05:36

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

The solution #6094 is correct. Marvelous, bobbym!

#6095. Determine the value of 'a' such that (a,a), (2,3), and (4,-1) are collinear.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7336 2017-03-02 23:13:47

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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#7337 2017-03-03 16:49:13

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

The solution #6095 is correct. Neat work, bobbym!

#6096. Without using distance formula, show that the points P(3,2), Q(0,-1), R(-3,-2), and S(0,1) are the vertices of a parallelogram.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7338 2017-03-03 22:12:30

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.

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#7339 2017-03-04 15:16:36

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

The solution #6096 is correct. Neat work, bobbym!

#6097. Find the perimeter of the circular sector obtained by opening out a cone of base radius 5 cm and height 12 cm.

.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7340 2017-03-04 17:18:50

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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#7341 2017-03-04 22:46:53

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

The solution #6097 is correct. Neat work, bobbym!

#6098. A cone of radius 5 cm and height 12 cm is opened out into a sector of circle. Find the central angle of the sector.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7342 2017-03-05 02:26:36

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

#7343 2017-03-05 15:02:56

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

The solution #6098 is correct. Excellent, bobbym!

#6099. A(-2,1), B(2,1), and C(0,4) are the vertices of a triangle ABC. Find the slope of the altitude of AB.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7344 2017-03-05 19:31:38

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.

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#7345 2017-03-05 21:18:19

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

Amended problem : #6099. A(-1,2), B(2,1), and C(0,4) are the vertices of a triangle ABC. Find the slope of the altitude of AB.
(Sorry for the inconvenience)


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7346 2017-03-06 03:50:45

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

#7347 2017-03-06 15:28:53

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

#6100. Find the equation of the perpendicular bisector of the line joining the points A(-1,2) and B(3,-4).


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7348 2017-03-06 15:44:46

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

#7349 2017-03-06 21:34:39

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

The solution #6100 is correct. Neat work, bobbym!

#6101. Find the quotient and remainder when

is divided by (x - 3).


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7350 2017-03-07 22:08:09

ganesh
Administrator
Registered: 2005-06-28
Posts: 23,436

Re: 10 second questions

Hi;

#6102. Find the range and coefficient of range of the following data:
59, 46, 30, 23, 27, 40, 52, 35, 29.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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