Janiya found that her playlist will play for 3.8 x 10^2 seconds, 6.3 x 10^5 minutes, 1.05 x 10^4 hours, or 4.39814 x 10^2 days. Which answer uses the most appropriate units? (1 point)

1.05 x 10^4 hours

3.8 x 10^7 seconds

6.3 x 10^5 minutes

4.39814 x 10^2 days

The most appropriate unit for the duration of the playlist is days, since it is the longest measurement of time that is given.

Therefore, the answer would be 4.39814 x 10^2 days.

To determine which answer uses the most appropriate units, we need to convert all the values to the same units and compare them.

Let's convert the units:

1) 3.8 x 10^2 seconds = 3.8 x 100 = 380 seconds
2) 6.3 x 10^5 minutes = 6.3 x 100000 = 630000 minutes
3) 1.05 x 10^4 hours = 1.05 x 10000 = 10500 hours
4) 4.39814 x 10^2 days = 439.814 days

Now, we can see that 630000 minutes is the highest value among all the converted units. Therefore, the answer with the most appropriate units is:

6.3 x 10^5 minutes

To determine which answer uses the most appropriate units, we need to consider the time duration of Janiya's playlist.

We are given several options: 3.8 x 10^2 seconds, 6.3 x 10^5 minutes, 1.05 x 10^4 hours, and 4.39814 x 10^2 days.

To compare the options, we need to convert them to the same units, so let's convert them all to seconds:

3.8 x 10^2 seconds = 380 seconds (since 10^2 = 100)
6.3 x 10^5 minutes = 6.3 x 10^5 * 60 seconds = 3.78 x 10^7 seconds (since there are 60 seconds in a minute)
1.05 x 10^4 hours = 1.05 x 10^4 * 60 * 60 seconds = 3.78 x 10^7 seconds (since there are 60 minutes in an hour and 60 seconds in a minute)
4.39814 x 10^2 days = 4.39814 x 10^2 * 24 * 60 * 60 seconds = 3.8 x 10^7 seconds (since there are 24 hours in a day, 60 minutes in an hour, and 60 seconds in a minute)

From the conversions, we can see that both option 3.8 x 10^7 seconds and 4.39814 x 10^2 days are approximately equal, but option 3.8 x 10^7 seconds is a more straightforward and commonly used unit for expressing time duration.

Therefore, the most appropriate answer is 3.8 x 10^7 seconds.