What is the value of z in the equation 2z + 6 = –4? (5 points)
5
1
–1
–5

Three coins are flipped. what is the probability that there will be at least two tails?

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?

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