Final answer:
Timestamping a 20-minute and 18-second file would be written as '20:18', indicating 20 minutes and 18 seconds. Example 11.8.2 demonstrates timestamping, starting at 23:20 and stopping at 29:00. In a review, adding times should include the appropriate units.
Step-by-step explanation:
When timestamping a 20-minute and 18-second file, the format to represent this duration would be '20:18'. This signifies 20 minutes and 18 seconds. Timestamping can be used for various purposes such as citing video content, marking segments for editing, or noting important parts of a recording.
Example of Timestamping:
In the provided example (Example 11.8.2), the instruction is to start the video at the 23:20 mark and stop it at the 29-minute setting. This means you would watch the part of the video that begins at twenty-three minutes and twenty seconds and ends exactly at twenty-nine minutes.
Review:
- 15 minutes + 60 minutes = 75 minutes
- 10 minutes + 20 minutes = 30 minutes
- 15 seconds + 45 seconds = 60 seconds (or 1 minute)
Remember to always use the correct units when adding times together.