Janina found that her playlist will play for 3.8×10^2 seconds, 6.3× 10^5 minutes, 1.05 × 10^4 hours, or 4.39814× 10^2 days. Which answer uses the most appropriate units?
1 answer
The most appropriate units to use in this case are days, as they provide the largest value. Therefore, the answer that uses the most appropriate units is 4.39814 × 10^2 days.