Which statement is true?
a. a kite is a rhombus because the diagonals are perpendicular.
b. the opposite angles of a kite are congruent.
c. an isosceles trapezoid has 2 pairs of congruent angles.
d. an isosceles trapezoid has perpendicular diagonals.

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

What is the result of the following division?

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.