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## #4626 2014-03-15 09:51:27

Denominator
Member
Registered: 2009-11-23
Posts: 155

### Re: 10 second questions

Hello

thanks

Last edited by Denominator (2014-03-15 09:51:44)

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## #4627 2014-03-15 23:03:08

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,892

### Re: 10 second questions

Hi bobbym and Denominator,

bobbym : The solution #4716 is correct. Neat work!

Denominator : The solutions #4716 and #4717 are correct. Excellent!

#4718. Simplify :

#4719. Simplify :

.

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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## #4628 2014-03-16 02:03:21

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 104,163

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

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## #4629 2014-03-16 23:45:06

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,892

### Re: 10 second questions

Hi bobbym,

The solutions #4718 and #4719 are correct. Remarkable!

#4720. If 2x + y = 15, 2y + z = 25 and 2z + x = 26, what is the value of z?

#4721. If 2x + 3y = 31, y - z = 4 and x + 2z = 11, then what is the value of x + y + z?

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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## #4630 2014-03-17 02:40:49

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 104,163

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4631 2014-03-17 19:01:40

Denominator
Member
Registered: 2009-11-23
Posts: 155

### Re: 10 second questions

Hiya

thanks

Last edited by Denominator (2014-03-17 19:11:26)

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## #4632 2014-03-18 00:32:22

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,892

### Re: 10 second questions

Hi bobbym and Denominator,

The solutions #4720 and #4721 are correct. Neat work!

#4722. Find the product:

#4723. Find the sum:

.

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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## #4633 2014-03-20 20:06:00

Denominator
Member
Registered: 2009-11-23
Posts: 155

### Re: 10 second questions

hi ganesh!

Last edited by Denominator (2014-03-20 20:08:01)

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## #4634 2014-03-21 00:05:59

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,892

### Re: 10 second questions

Hi Denominator,

The solutions #4722 and #4723 are correct. Brilliant!

#4724. Evaluate :

.

#4725. Evaluate :

.

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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## #4635 2014-03-21 01:45:04

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 104,163

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4636 2014-03-21 13:06:05

Denominator
Member
Registered: 2009-11-23
Posts: 155

### Re: 10 second questions

Last edited by Denominator (2014-03-21 13:06:33)

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## #4637 2014-03-21 14:33:58

ElainaVW
Member
Registered: 2013-04-29
Posts: 510

### Re: 10 second questions

Last edited by ElainaVW (2014-03-21 14:34:17)

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## #4638 2014-03-22 01:13:36

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,892

### Re: 10 second questions

Hi bobbym, Denominator and ElainaVW,

The Solutions #4724 and #4725 are correct! Remarkable!

(The solution #4724 is

Denominator!)

#4726. Find the value of

.

#4727. Simplify:

.

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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## #4639 2014-03-22 03:18:10

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 104,163

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4640 2014-03-22 10:24:34

Denominator
Member
Registered: 2009-11-23
Posts: 155

hello;

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## #4641 2014-03-23 00:02:44

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,892

### Re: 10 second questions

Hi bobbym and Denominator,

The solutions

and
.

Excellent, Denominator!

#4728. Find the value of x.

#4729. Find the value of 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.

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## #4642 2014-03-23 00:21:04

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 104,163

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4643 2014-03-23 19:09:31

Denominator
Member
Registered: 2009-11-23
Posts: 155

hello

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## #4644 2014-03-24 00:41:55

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,892

### Re: 10 second questions

Hi bobbym and Denominator,

bobbym : The solutions #4728 and #4729 are correct. Excellent!

Denominator : The solution #4728 is correct. Good work!

#4730. Evaluate:

#4731. 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.

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## #4645 2014-03-24 03:33:07

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 104,163

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4646 2014-03-25 00:29:46

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,892

### Re: 10 second questions

Hi bobbym,

The solutions #4730 and #4731 are correct. Remarkable!

Find the value of x.

#4732.

#4733.

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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## #4647 2014-03-25 00:33:34

bobbym
From: Bumpkinland
Registered: 2009-04-12
Posts: 104,163

### 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.
A number by itself is useful, but it is far more useful to know how accurate or certain that number is.

Online

## #4648 2014-03-25 18:56:25

Denominator
Member
Registered: 2009-11-23
Posts: 155

hallo

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## #4649 2014-03-25 23:45:35

ganesh
Moderator
Registered: 2005-06-28
Posts: 20,892

### Re: 10 second questions

Hi,

bobbym : The #4732 is

. The solution #4733 is correct. Good work!

Denominator : The solutions #4732 and #4733 are correct. Excellent!

#4734.

#4735. Find the value of 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.

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## #4650 2014-03-26 00:44:11

eigenguy
Member
Registered: 2014-03-18
Posts: 78

### Re: 10 second questions

Last edited by eigenguy (2014-03-26 00:46:52)

"Having thus refreshed ourselves in the oasis of a proof, we now turn again into the desert of definitions." - Bröcker & Jänich

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