Ocean waves move in parallel lines toward the shore. the figure shows the path that a windsurfer takes
across several waves. for this exercise, think of the windsurfer's wake as a line. if m 21 = (3x + 2y)° and
m 22 = (3x + y)", find x andy.
790
and y =

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?