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The average distance between the planet Neptune and the sun is about 4 x 10^9 kilometers. What is 4 x 10^9 written in standard notation? A. 0.0000000004 B. 0.000000004 C. 400,000,000 D. 4,000,000,000
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The average distance between the planet Neptune and the sun is about 4 x 10^9 kilometers. What is 4 x 10^9 written in standard notation?

A. 0.0000000004
B. 0.000000004
C. 400,000,000
D. 4,000,000,000

User Anshuman
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1 Answer

5 votes
D. 4,000,000,000

The 9 shows that the decimal moves to the right 9 times. If it were a -9 it would move to the left 9 times.
User Portevent
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