Anumber is 42,300 when multiplied by 10.find the product of this number and 500

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Answer for 10 points show work you guys in advanced < 3

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