B(n) = -1 (2)^n-1 What is the 5th term in the sequence?

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?

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

£100.80 divided by 14 equals 7.2 how would we put this as money