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## #76 2013-09-19 23:07:56

Derick Mixon
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### Re: Math

Can you show me how you would solve this? I have the answers is you want to see them

## #77 2013-09-20 00:39:40

bobbym

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### Re: Math

Start by doing the subtraction on the left side.

Now cross multiply.

Factor,

You have x = 0 and x = -2. We reject the 0 solution so x = -2.

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

Derick Mixon
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1/2 right?

## #79 2013-09-20 01:58:16

bobbym

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### Re: Math

For the first one?

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

Derick Mixon
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yes

## #81 2013-09-20 02:00:42

bobbym

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### Re: Math

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

## #82 2013-09-20 02:03:12

Derick Mixon
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### Re: Math

ok youre right I see It now what abou the next one

Last edited by Derick Mixon (2013-09-20 02:04:48)

## #83 2013-09-20 02:04:54

bobbym

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### Re: Math

Give me some time to do the other ones. I will post them right here.

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

Derick Mixon
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ok thanks

## #85 2013-09-20 02:40:41

bobbym

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### Re: Math

Multiply both sides by 20.

Clean it up.

Subtract 5x from both sides.

Divide both sides by 15 and you get x = - ( 17 / 15).

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

## #86 2013-09-20 03:17:10

Derick Mixon
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### Re: Math

I have that as well. ok the next question

## #87 2013-09-20 07:45:36

bobbym

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### Re: Math

Times both sides by 24.

Subtract 8x from both sides.

x = 1

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

## #88 2013-09-20 09:51:36

Derick Mixon
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### Re: Math

are you done for the night?

## #89 2013-09-20 12:20:39

bobbym

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### Re: Math

Hi;

Yes, I am going to eat.

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

## #90 2013-09-20 22:37:08

Derick Mixon
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### Re: Math

Did you do the rest yet?

## #91 2013-09-20 22:40:34

bobbym

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### Re: Math

Take 1 / 9 away from both sides.

Flip them both,

x = 3

For the last one:

Times both sides by 15x.

Divide both sides 4.

x = ( 14 / 4 ) = ( 7 / 2 )

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

## #92 2013-09-22 03:17:02

Derick Mixon
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### Re: Math

Are you in today?

## #93 2013-09-22 03:19:51

bobbym

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### Re: Math

Yes, I am.

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

## #94 2013-09-22 03:45:47

Derick Mixon
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### Re: Math

State the domain of y = x2

State the range of y = x2

State the domain of y = x2 + 2

State the range of y = x2  + 2

State the domain of y = 2x2 + 3

State the range of y = 2x2 + 3

State the domain of y = x2 – 5

State the range of y = x2  - 5

State the domain of y = -x2

State the range of y = –x2

## #95 2013-09-22 03:54:31

Derick Mixon
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### Re: Math

Can you show me how to solve them?

## #96 2013-09-22 03:57:29

bobbym

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### Re: Math

What is x2?

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

Derick Mixon
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The x value

## #98 2013-09-22 04:28:58

bobbym

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### Re: Math

And the 2, is that a power?

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.

Derick Mixon
Full Member

Offline

yes

## #100 2013-09-24 06:26:49

bobbym

Online

### Re: Math

State the domain of y = x^2

State the range of y = x^2

I get the domain as R and the range as [0,∞)

State the domain of y = x^2 + 2

State the range of y = x^2  + 2

Domain is R and the range is all positive reals greater than or equal to 2.

In mathematics, you don't understand things. You just get used to them.
Some cause happiness wherever they go; others, whenever they go.
If you can not overcome with talent...overcome with effort.