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4 votes
What is the following number in decimal form? 8.49 × 10 –7

A. 0.0000000849

B. 0.000000849

C. 8,490,000

D. 849,000,000

1 Answer

5 votes
Start with the decimal point after the 8.
Now move it to the left 7 places (from the exponent -7).
You need to add place holder zeros.

Answer is:
0.000000849 which is choice B.
User Benastan
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