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PLEASE HELP ME Jamie used a microscope to measure the diameter of a hair. She found that the diameter of the hair was 0.000072 meter. How is this number written in scientific notation? A. 7.2 × 10−6 B.
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PLEASE HELP ME

Jamie used a microscope to measure the diameter of a hair. She found that the diameter of the hair was 0.000072 meter. How is this number written in scientific notation?
A. 7.2 × 10−6
B. 7.2 × 105
C. 7.2 × 10−5
D. 7.2 × 106

User Gofilord
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2 Answers

4 votes
B. 7.2 x 10-6
Is your answer
User Option
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5 votes
The answer is C because it’s going back 5 times meaning it’s -5
User Albondi
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