Question

1. timers at a track meet used four different clocks to time an event. which recorded time is the most precise? 31 s 31.256 s 31.3 s 31.26 s

Explanation:

Step1: Understand precision

Precision refers to the number of decimal places. The more decimal places, the more precise the measurement.

Step2: Analyze each option

• \(31s\) has \(0\) decimal places.
• \(31.3s\) has \(1\) decimal place.
• \(31.26s\) has \(2\) decimal places.
• \(31.256s\) has \(3\) decimal places.

Since \(31.256s\) has the most decimal places among the given options, it is the most precise.

Answer:

\(31.256s\)