Is it possible to determine the​ mode?
A.
The mode can be determined. The mode is the category that occupies the portion of the circle graph that is on the opposite side of the circle from the location where the first category begins.
B.
The mode cannot be determined because categorical data do not have a mode. Only numerical data have a mode.
C.
The mode cannot be determined because a circle graph does not display frequencies.
D.
The mode can be determined. The mode is the category represented by the largest sector of the circle graph.

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?