Which of the following statements correctly describes how to tell when a function is positive over a given interval.

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2

Determine the area of a triangle with (see picture below)

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