Which of the following is not sufficient to prove a parallelogram is a rhombus? All sides are congruent.
Diagonals bisect the angles.
Diagonals bisect each other.
Diagonals are perpendicular.

The width of a rectangle is half as long as the length. the rectangle has an area of 18 square feet. what are the length and width of the rectangle?

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

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2