Answer:
Explanation:
The correct decimal representation of 6.453 × 10^3 can be found by multiplying the number 6.453 by 10 raised to the power of 3.
6.453 × 10^3 = 6.453 × 1000
When we multiply 6.453 by 1000, we move the decimal point three places to the right:
6.453 × 1000 = 6453
Therefore, the correct decimal representation of 6.453 × 10^3 is 6453.
In summary, the correct answer is A) 6,453.