Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1076 2017-04-13 20:00:06

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

Hi;

.

636. Find the area of a triangle whose vertices are A(3,2), B(11,8), and C(8,12).


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.

Offline

#1077 2017-04-13 22:03:28

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Compute the solution:

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

#1078 2017-04-15 17:32:39

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

Hi;

The solution 636 is perfect. Excellent, bobbym!

637. 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.

Offline

#1079 2017-04-15 20:22:05

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Compute the solution:

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

#1080 2017-04-20 17:00:17

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

Hi;

The solution 637 (two values) is correct. Neat work, bobbym!

638. If

are the zeroes of the quadratic polynomial
, find the value of
.


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.

Offline

#1081 2017-04-20 23:23:29

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Compute the solution:

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

#1082 2017-05-19 21:21:30

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

Hi;

The solution 638 is correct. Brilliant!

639. If 1 is a root of the quadratic equation

and the quadratic equation
has equal roots, find the value of b.


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.

Offline

#1083 2017-05-23 08:38:40

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,241
Website

Re: Compute the solution:

Online

#1084 2017-07-25 01:15:18

NakulG
Member
Registered: 2014-09-02
Posts: 186

Re: Compute the solution:

ganesh wrote:

Hi;

622. Evaluate:

.

Hi, Can someone show me the working for the above question?

Thanks
Nakul

Offline

#1085 2017-07-25 01:24:51

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,241
Website

Re: Compute the solution:

Try expanding
where
are coefficients you should try to determine.

Online

#1086 2017-07-25 01:35:07

NakulG
Member
Registered: 2014-09-02
Posts: 186

Re: Compute the solution:

Thanks it worked :-)

Offline

#1087 2018-10-24 22:58:38

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

zetafunc wrote:

The solution 639 is correct. Excellent, zetafunc!

640. For what value of k is (x - 5) a factor of

?


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.

Offline

#1088 2018-10-25 13:40:13

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,626

Re: Compute the solution:


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

Offline

#1089 2018-10-25 15:34:10

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

Hi,

Good attempt, Monox D. I-Fly! Almost there!

641. If each interior angle of a regular polygon is 135°, find the number of diagonals of the polygon.


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.

Offline

#1090 2019-05-05 17:27:08

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

Hi,

642. Find the other polynomial q(x), given the LCM (Least Common Multiple), GCD (Greatest Common Divisor), and one polynomial p(x) respectively.

.


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.

Offline

#1091 2019-05-12 21:17:22

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

Hi,

.

643. Solve 2x + 3y = 11 and 2x - 4y = -24, and then solve for the value of m for which y = mx + 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.

Offline

#1092 2019-05-13 18:56:34

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,626

Re: Compute the solution:


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

Offline

#1093 2019-05-14 00:12:17

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

Hi,

Excellent, Monox D. I-Fly! 643 is correct!

644. Solve: x + y = 5 and 2x - 3y = 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.

Offline

#1094 2019-05-18 22:03:16

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

Hi,

.

645. For what values of a and b does the following pair of linear equations have infinite number of solutions?
2x + 3y = 7
and
(a - b)x + (a + b)y = 3a + b - 2.


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.

Offline

#1095 2019-05-31 23:02:59

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

Hi,

646. For what value of k will the following pair of linear equations have no solution?
3x + y = 1.
(2k - 1)x + (k - 1)y = 2k + 1.


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.

Offline

#1096 2019-06-15 23:14:52

ganesh
Administrator
Registered: 2005-06-28
Posts: 28,225

Re: Compute the solution:

Hi,

647. The distance between the points (3, 1) and (0, x) is 5 units. Find x.


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.

Offline

Board footer

Powered by FluxBB