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December 20, 2014

December 20, 2014

Posted by **Lucy** on Sunday, February 3, 2008 at 10:54am.

The answers are: 4.7 x 10 to the 4th power, 4700 sec, 4.7 x 10 to the 3rd, or 47 x 10 to the 3rd.

I used the formula t=d/r

1.4 x 10 to the 9th power divided by 3.0 x 10 to the 5th power leaves 0.4666 x 10 to the 4th power.

I think the answer is 4.7 x 10 to the 3rd power. Is this correct?

- Algebra II -
**drwls**, Sunday, February 3, 2008 at 11:14amYes, that is right. You are also correct to round it off to two significant figures. Your answer is in seconds - It's about an hour and a half.

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