Solve. Write the answer in scientific notation. Our galaxy is estimated to be  5.6 × 1019 mi  across. How many years would it take a spaceship traveling at 40,000 mph to cross the galaxy? (Round the decimal value to one decimal place.)

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Chapter61: Areas Of Circles, Sectors, And Segments
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Solve. Write the answer in scientific notation.

Our galaxy is estimated to be 

5.6 × 1019 mi

 across. How many years would it take a spaceship traveling at 40,000 mph to cross the galaxy? (Round the decimal value to one decimal place.)

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