Substitute the given side lengths into the equation for the Pythagorean Theorem

15 yards

Step-by-step explanation:

a^2 + b^2 = c^2

9^2 + 12^2 = c^2

81 + 144 = c^2

sqrt225 = c

c = 15 yards

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.