The answer should be D.
The square root of two.
Either way light travels 2.99 times 10^8 scientifically speaking but given the facts above it is 3 times 10^8
Answer:

Where x represent the distance and t the time if we replace the info given we got:

Then the average speed for this case in m/s is 3.704 for the 200 meter race
Step-by-step explanation:
The problem provides for this case the amount of distance travelled by Jessica in a given time. And we know that travels 200m in 54 seconds.
We want to find the average speed and we can use the following formula:

Where x represent the distance and t the time if we replace the info given we got:

Then the average speed for this case in m/s is 3.704 for the 200 meter race
There different bcuz the denominator is the bottom number when u multiply or divide a fraction when u find a common number out of the 2 bottom ones
there alike bcuz they both r numbers in common with the number u r working with.
Answer:
Just to be on the safe side the first #1 is 31.5 and the second #1 is 57.82