3. the angles of elevation to an airplane from two points a and b on level ground are 55o and 72o respectively. a and b are 2.2 miles apart and the plane is east of both points. find the altitude of the plane.

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?