Stretch out your arm and measure the distance from the tip of your nose to the end of your middle finger. How does YOUR "yard" compare to the actual set value of a yard? Explain the reason for any discrepancy. Can someone please help me? :(

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