Final answer:
Scientific notation involves determining the power of 10 by moving the decimal point, enabling the number to be expressed in a compact form.
Explanation:
In scientific notation, the power of 10 is determined by the number of places the decimal point is moved to make the number between 1 and 10. For example, if 157,821 is written as 1.57821 × 105, the power of 10 is 5.
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