On the refrigerator mathcounts is spelled out with 10 magnets one letter per magnet. Two vowels and three consonants fall of and are put away in a bag. If the t's are indistinguishable how many distinct possible collections of letters could be in the bag?

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