What equation shows the average speed of a rabbit that runs 39m in 3s?

Average speed is defined as the total distance traveled divided by the total time taken to cover that distance. In this scenario, the rabbit runs a total distance of 39 meters in a span of 3 seconds. The proper formula for calculating the average speed is ( v = \frac{s}{t} ), where ( s ) is the distance and ( t ) is the time.

When applying the values from the problem, we have:

• Distance, ( s = 39 , \text{m} )
• Time, ( t = 3 , \text{s} )

Substituting these into the formula gives:

[ v = \frac{39 , \text{m}}{3 , \text{s}} ]

This simplifies to 13 meters per second, which accurately reflects the average speed of the rabbit.

The other choices involve incorrect formulations for average speed. Squaring the distance or the time, or multiplying them together, does not conform to the definition of average speed, thus leading to values that do not represent the actual speed of the rabbit.