Which description does NOT guarantee that a quadrilateral is a square? A. A quadrilateral has all sides congruent and all angles congruent.
B. A quadrilateral is a parallelogram with perpendicular diagonals.
C. A quadrilateral is both a rectangle and a rhombus.
D. A quadrilateral has all right angles and has all sides congruent.

Use Picture Math, i cant type in the other cause doesn't accept it but it is Ga_thMath. (u) or look up the rules of a quadrulateral.

Quote, "A quadrilateral is a 2D shape with four sides.

...

Quadrilaterals

A square has four sides of equal length.

It has four right angles (90°).

The opposite sides are parallel.

The diagonals bisect each other at right angles."

Good luck!

the expected value of the random variable : 0, 1 and 2

step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,