The number of kilograms, y, of a radioactive element that remains that after t hours can be modeled by the equation y=0.23(0.91)t what is the rate of decrease of this radioactive element?

Aplane intersects a pris paralel to the base of the prism. the cross section is a polygon wth eight sides. how many sides does the base of the prism have? a. 10 b. 8 c. 7 d. 9

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

Agatorade cooler has 36 cups of water. if a serving is 3/4 of a cup how many servings are in the cooler?