The arch of the gateshead millenium bridge forms a parabola with equation y=-0.016(x-52.5)^2+45 where x is the horizontal distance (in meters) form the arch's left end and y is the distance (in meters) from the base of the arch. what is the width of the arch?

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