Which forms a right triangle? A A city park with sides that are 2 mi,
4 mi, and 6 mi long
B
A piece of paper cut so that the sides
are 3 cm, 5 cm, and 6 cm
с
A triangular deck with sides 6 ft, 8 ft,
and 10 ft
DA plastic tile with sides 4 in., 5 in.,
and 8 in.

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