## write the number in standard notation. 6.43 × 10^-4 a. 0.0000643 b. -257.2 c. 0.000643 d. 0.00643

Question

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## Answers ( No )

the answer is c.0.000643

When it is a negative number, you move the decimal over to the left <——

The answer is c. 0.000643