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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

bobbym
2013-08-13 00:53:43

Hi;

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

EbenezerSon
2013-08-12 22:25:15

Okay.

I will return getting to nıght time.

bobbym
2013-08-12 22:16:50

Hi;

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

EbenezerSon
2013-08-12 22:14:32

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!

bobbym
2013-08-12 21:52:10

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.

EbenezerSon
2013-08-12 21:43:30

Yes, Bobbym.

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


Now, I had the same answer for the second question.


I owe you some thanks. :-)

bobbym
2013-08-12 21:23:28

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


Is this 2)?

EbenezerSon
2013-08-12 21:18:05

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

It looks I was confused by the root.

bobbym
2013-08-12 21:08:40

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

Now combine the two answers.

EbenezerSon
2013-08-12 21:03:38

= 0.36 *10^0

bobbym
2013-08-12 20:55:35

Very good.

Now what is .81 / 2.25?

EbenezerSon
2013-08-12 20:52:51

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

bobbym
2013-08-12 20:45:39

Do it by pieces, what is

EbenezerSon
2013-08-12 20:41:58

Please can you provide the steps?

Thanks.

bobbym
2013-08-12 20:34:58

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

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