A Naval engineer uses the function, P, to analyze the effects of water pressure on submarines. The function P(d) measures the pressure exerted by the water, where d, represents the depth of the water in meters. Which of the following would be a possible domain?

A) d is the set of all domains
B) d is the set of all integers where d is greater than 0
C) d is the set of all rational numbers
D) d is the set of all rational number where 0 is less or equal to d which is less or equal to the depth of the sea floor

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