Asquare matrix is called a permutation matrix if it contains the entry 1 exactly once in each row and in each column, with all
other entries being 0. all permutation matrices are invertible. find the inverse of the permutation matrix

How many days was the temperature above 90 degrees?

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.