Acarpenter had a board that was 5.28 m5.28 \text { m} 5.28 m 5, point, 28, space, m long. she used her circular saw to cut 9 cm9 \text{ cm} 9 cm 9, space, c, m off the end of the board. how many centimeters long was the board after the carpenter cut it?

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