Final answer:
Using approximations to one significant figure, the estimated value of 0.482 times 61.2 squared divided by 98.01 is 18.
Step-by-step explanation:
To estimate the value of 0.482 times 61.2 squared divided by 98.01 using approximations to 1 significant figure, we begin by rounding each number to one significant figure. 0.482 rounds to 0.5, 61.2 rounds to 60, and 98.01 rounds to 100. We then perform the calculation:
- 60 squared is 3600.
- 0.5 times 3600 equals 1800.
- 1800 divided by 100 equals 18.
Therefore, the estimated value of the expression when rounded to one significant figure is 18.