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The distance from Earth to Mars is about 35,000,000 miles. What is the order of magnitude of this number?. . . . . . . . A.. . 6. . . . . . . . . B.. . 5. . . . . . . . . C.. . 4. . . . . . . . . D.. .
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The distance from Earth to Mars is about 35,000,000 miles. What is the order of magnitude of this number?. . . . . . . . A.. . 6. . . . . . . . . B.. . 5. . . . . . . . . C.. . 4. . . . . . . . . D.. . 7. .

User YNR
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The scientific notation of the given, 35,000,000 is 3.5 x 10^7. The order of magnitude of a scientific notation is the exponent of its multiplier, 10. From the derived scientific notation above, the exponent of 10 is 7. Thus, the answer is letter D. 
User Michaelanthony
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