Consider the quadratic equation ax^2+bx+c=0, where a, b, and c are rational numbers and the quadratic has two distinct zeros. if one zero is rational, which of the following is true about the other zero.

a. the other zero is irrational
b. the other zero could be rational or irrational
c. the other zero is not a real number
d. the other zero is rational

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