Final answer:
The distance from the edge of the mat to the opposite wall, x, is 52.5 feet.
Step-by-step explanation:
To determine the distance from the edge of the mat, x, to the opposite wall, we can use the Pythagorean theorem.
Since the mat is 4 feet wide and 5 feet long, the diagonal of the mat can be found using the formula sqrt(4^2 + 5^2) = sqrt(16 + 25) = sqrt(41) feet.
The center of the mat is 73 feet from the wall, so half the diagonal length is 41/2 = 20.5 feet.
Therefore, the distance from the edge of the mat to the opposite wall, x, is 73 - 20.5 = 52.5 feet.