What is the distance between the point (1,-6) and (-5,2)
a. 5.6 units
b. 7.2 units
c. 9 units
d. 10 units

Evaluate cos2θ for cosθ = square root of 3/2

Find the area of an equilateral triangle with a side of 6 inches

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