0009cc0c27/itemid/60758687b55770008 0564d5 Q O +

A ship leaves a dock and sails 15 miles due east. The ship then sails due north and hits an ocean buoy. A rescue boat is sent to help the ship. The rescue boat travels the shortest distance
from the dock to the ship. 17 miles. How many miles north did the ship sail before it hit the ocean buoy? (Do not include units)

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?