The area of a sector BAC with radius 13cm is 30 cm². Find x, the size of the central angle of sector BAC. *

1- 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.2- 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 the first question?

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Can someone show me step by step how to do this?