The Science Club is researching boiling points. They learn that at high altitudes, water boils at lower
temperatures. At sea level, water boils at 212 F. With
each increase of 500 feet in elevation, the boiling point
of water is lowered by about 1°F.

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit