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OpenStudy (anonymous):
Can someone please help? The circumference of the Earth is approximately 131,000,000 ft. a. Write this number in scientific notation and tell how you knew whether to use a positive or a negative exponent. b. The circumference of Mars is 7.00 x 107. Which planet is larger, and by how many feet? Write the answer in both standard and scientific notation.
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OpenStudy (anonymous):
In scientific notation there can only be 1 number left of the decimal point. Your decimal point is at the end of the number. How many spots must it move and in what direction to get it behind the first 1?
OpenStudy (anonymous):
6 times
OpenStudy (anonymous):
no, if you move it 6 times there will be 3 digits left of decimal. |dw:1441997504656:dw|
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