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## #1 2013-08-12 19:30:23

EbenezerSon
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### Standard Form.

I have solved it but had different solution  from what the book has, I need some assistance.

1) 0.81 * 10^-5/2.25 * 10

2). 0.0048 * 0.81 * 10^-7/ 0.027 * 0.04 * 10^6

Both number one and two are in a  'square root sign'

Please, I would be much obliged if you produce your steps here.

## #2 2013-08-12 19:35:48

bobbym

Online

### Re: Standard Form.

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.

## #3 2013-08-12 19:58:29

EbenezerSon
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### Re: Standard Form.

1). I had 6.0 * 10^-15

And

2). I had, 6.0 * 10^-9.

Last edited by EbenezerSon (2013-08-12 20:09:07)

## #4 2013-08-12 20:13:50

bobbym

Online

### Re: Standard Form.

Okay, 1) looks like this?

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.

## #5 2013-08-12 20:19:21

EbenezerSon
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### Re: Standard Form.

Yes. But all are in a square root.

Sorry! the denominator is 2.25 * 10^7

Forgive me.

## #6 2013-08-12 20:23:50

bobbym

Online

### Re: Standard Form.

So we have:

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.

EbenezerSon
Full Member

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Right!

## #8 2013-08-12 20:34:58

bobbym

Online

### Re: Standard Form.

You were close I am getting 6 x 10^-7

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.

## #9 2013-08-12 20:41:58

EbenezerSon
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### Re: Standard Form.

Please can you provide the steps?

Thanks.

## #10 2013-08-12 20:45:39

bobbym

Online

### Re: Standard Form.

Do it by pieces, what is

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.

## #11 2013-08-12 20:52:51

EbenezerSon
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### Re: Standard Form.

= 10^(-5-7)=10^-12.

## #12 2013-08-12 20:55:35

bobbym

Online

### Re: Standard Form.

Very good.

Now what is .81 / 2.25?

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.

EbenezerSon
Full Member

Offline

= 0.36 *10^0

## #14 2013-08-12 21:08:40

bobbym

Online

### Re: Standard Form.

Leave out the 10^0, it is 1. We do not show multiplication by 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.

## #15 2013-08-12 21:18:05

EbenezerSon
Full Member

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### Re: Standard Form.

0.36 *  10-12
= 0.6 * 10^-6
= 6.0 * 10^-7

It looks I was confused by the root.

## #16 2013-08-12 21:23:28

bobbym

Online

### Re: Standard Form.

Very good. It is awful making a human being do such calculations. We have machinery for that nowadays.

Is this 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.

## #17 2013-08-12 21:43:30

EbenezerSon
Full Member

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### Re: Standard Form.

Yes, Bobbym.

I just want to become used to them, cos in no time I will be teaching others.

I owe you some thanks. :-)

## #18 2013-08-12 21:52:10

bobbym

Online

### Re: Standard Form.

That book has a sense of humor at least. I am getting the same answer as 1).

I owe you some thanks. :-)

No thanks required.

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.

## #19 2013-08-12 22:14:32

EbenezerSon
Full Member

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### Re: Standard Form.

Yes I tried to solve it once again and now I have the same answer as the first one, The root was my main problem, but now I have known how to go about that.

Thank you very much Bobbym.

God bless you!

## #20 2013-08-12 22:16:50

bobbym

Online

### Re: Standard Form.

Hi;

You are welcome. I am going to take a break, see you in a bit.

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.

## #21 2013-08-12 22:25:15

EbenezerSon
Full Member

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### Re: Standard Form.

Okay.

I will return getting to nÄ±ght time.

## #22 2013-08-13 00:53:43

bobbym

Online

### Re: Standard Form.

Hi;

Sorry for the delay but I needed an hour or so nap.

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.