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#601 2016-07-29 03:55:19

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.

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#602 2016-07-29 16:38:00

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

The solution 411 is correct. Excellent, bobbym!

412. A bag contains 5 red balls, 8 white balls, 4 green balls, and 7 black balls. If one ball is drawn at random, find the probability that it is
(i) black
(ii) red and
(iii) not green.


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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#603 2016-07-29 17:17:03

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.

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#604 2016-07-30 19:41:21

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

A punctuation ambiguity crept in in 412 (ii). The revised question 412 (ii).

412. A bag contains 5 red balls, 8 white balls, 4 green balls, and 7 black balls. If one ball is drawn at random, find the probability that it is
(i) black
(ii) red
(iii) not green.

#413. If a letter is chosen at random from the word
(i) TRIANGLE   
(ii) RECEIVE
what is the probability that it is a vowel?


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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#605 2016-07-31 00:33:22

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.

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#606 2016-07-31 16:03:59

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

The solutions 412 and 413 are correct. Neat work, bobbym!

414. One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting
(i) a king of red color
(ii) a face card
(iii) a red face card
(iv) the jack of hearts
(v) a spade
(vi) the queen of diamonds.


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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#607 2016-08-01 23:56:47

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

415. A tent of height 8.25 m is in the form of a right circular cylinder with diameter of base 30 m and height 5.5 m, surmounted by a right circular cone of the same base. Find the cost of the canvas of the tent at the rate of 45 square meters.


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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#608 2016-08-02 01:49:15

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

#609 2016-08-02 16:17:37

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;


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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#610 2016-08-02 16:50:51

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

#611 2016-08-02 17:40:59

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

416. In each of the following, find the value of k for which the points are collinear:
(i) (7,-2), (5,1), (3,k).
(ii) (8,1), (k,-4), (2,-5).


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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#612 2016-08-02 18:33:36

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

#613 2016-08-02 22:52:51

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

The solution 416 (two parts) are correct. Neat work, bobbym!

417(a). Find the perimeter of the triangle PQR where P(3,1), Q(7,4), and R(11,1).

417(b). Using distance formula, show that the points, (-3,2), (1,-2), and (9,-10) are collinear.


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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#614 2016-08-03 00:13:50

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

#615 2016-08-03 16:32:11

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

The solutions in 417 are correct. Marvelous, bobbym!

418. Find the roots of the following quadratic equation:

where
.


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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#616 2016-08-04 04:17:50

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

#617 2016-08-04 16:15:59

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

The solutions in 418 are correct. Excellent, bobbym!

419. 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.

Offline

#618 2016-08-04 17:18:38

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

#619 2016-08-05 20:45:48

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

The solution 419 is correct. Neat work, bobbym!

420. Find the area of the quadrilateral whose vertices are (3,-2), (4,0), (6,-3), and (5,-5).


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

#620 2016-08-06 03:13:25

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

#621 2016-08-06 16:47:13

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

The solution 420 is correct. Excellent, bobbym!

421. Find all the zeroes of the polynomial

, if its two zeroes are 2 and -2.


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

#622 2016-08-06 20:48:04

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

#623 2016-08-07 16:52:40

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

The solution 421 is correct. Good work, bobbym!

422. Divide

by


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

#624 2016-08-07 17:06:58

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

#625 2016-08-08 00:11:44

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 45,968

Re: Compute the solution:

Hi;

The solution 422 is correct. Neat work, bobbym!

423. Evaluate:


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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