In product testing, a bungee cord manufacturer concludes that the lifetime of their cords is normally distributed with an average of 200 jumps and a standard deviation
of 30. Bungee Operators are provided with this information. Hackett Bungee Opera-
tors have decided that the highest tolerable risk of a cord snapping is 0.1%. What is
the maximum number of jumps Hackett Bungee Operators will allow on a single cord?

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?