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I have a question about Scientific notation

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So i'm doing some physics exersises, and i get this to solve and round do the scientific notation.

a=8,0*10^5
b=2,3
c=631

p=b+c=
y=p*a=

So i know p=b+c= 633,3
But everytime i fill in 50*10^7 or 5,0*10^8 at 'y=p*a=' it sais i'm wrong.

Can anyone help me?
 Dec 5, 2012

3+0 Answers

 #1
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a=8,0*10^5
b=2,3
c=631

LauweJoster:

p=b+c=


[input]a=8.0*10^5; b=2.3; c=631; b+c[/input]

LauweJoster:

y=p*a=


[input]a=8.0*10^5; b=2.3; c=631; p=b+c; p*a[/input]
[input]506640000[/input]
 Dec 5, 2012
 #2
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0
It still sais it isn't right :/
I have to round to the smallest amount of significant digits, but that doesn't work.
 Dec 5, 2012
 #3
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0
LauweJoster:


But everytime i fill in 50*10^7 or 5,0*10^8 at 'y=p*a=' it sais i'm wrong.



Why are you doing 5e8? a=8e5.
 Dec 9, 2012

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