Final answer:
Simplifying 47.2 - 6 using significant figures, we adhere to the rule for addition and subtraction and round the final result to zero decimal places, which gives us 41.
Step-by-step explanation:
To simplify the expression 47.2 - 6 using the rules of significant figures, we must first understand the rule for addition and subtraction. The rule states that the final result should be rounded off to the same number of decimal places as the number with the fewest decimal places. Since 6 has no decimal places, we round the result to zero decimal places.
Now, simplifying we get: 47.2 - 6 equals 41.2. However, adhering to the rule, we round 41.2 to 41, which has no decimal places in line with the least certain value in our operation, which is 6.