exponents: converting to sci. notation, simplifying x * x^-7

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nastydahitman
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exponents: converting to sci. notation, simplifying x * x^-7

Postby nastydahitman » Fri Sep 02, 2011 9:31 pm

1) Express the answer in scientific notation to two decimals: The earth is approx. 92,900,000 miles from the sun. If 1mile = 1.61 x 10^3m, what is the distance to the sun in meters?

2) Simplify: x * x^-7 (Do not use negative exponents in the answer.)

3) Write an equivalent expression using positive exponents: 1/ x^-3

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maggiemagnet
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Re: exponents: converting to sci. notation, simplifying x *

Postby maggiemagnet » Fri Sep 02, 2011 10:22 pm

nastydahitman wrote:1) Express the answer in scientific notation to two decimals: The earth is approx. 92,900,000 miles from the sun. If 1mile = 1.61 x 10^3m, what is the distance to the sun in meters?

To learn how to use scientific notation and how to convert regular numbers to scientific notation, try here.

nastydahitman wrote:2) Simplify: x * x^-7 (Do not use negative exponents in the answer.)

3) Write an equivalent expression using positive exponents: 1/ x^-3

To learn how to convert to all-positive exponents, try here.

After you've read the lessons, please try the exercises. If you get stuck, please write back showing how far you've gotten. Thanks!

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