consider the function y=e sin3x which of the following correctly finds function f(x) and g(x) so that y can be described as y=(f °g)(x)

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?

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.