Which of the following is the definition of a rational number? a. a number that has a multiplicative inverse b. a number that can be written as a nonterminating or nonrepeating decimal c. a number that is divisible by only 1 and itself d. a number that can be written as a ratio of two integers

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