O negativo da idade de Arnaldo é menor que o negativo da idade de José. O negativo da idade de José é menor que a idade de Francisco. Pode-se afirmar, seguramente, que: A
Arnaldo é mais novo que José.

B
Arnaldo é mais velho que José.

C
José é mais novo que Francisco.

D
José é mais velho que Arnaldo.

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