Acar is traveling down a highway at a constant speed described by the equation d=65t where d the distance in miles that the car travels at this speed in t hours

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Average acceleration: i have no idea how to do this.

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0