Answer :
Final answer:
To evaluate 7.921 x 10^4, move the decimal point four places to the right in 7.921 to get 79,210.
Explanation:
To evaluate 7.921 x 10^4, we multiply the base number, 7.921, by 10 raised to the power of 4. Since multiplying a number by 10 raised to a power simply shifts the decimal point to the right by that many places, we can simply move the decimal point four places to the right in 7.921. Doing so gives us the answer of 79,210.
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