A, b and c are vertices of a triangle.

a has coordinates (4, 6)
b has coordinates (2, -2)
c has coordinates (-2, -4)

d is the midpoint of ab.
e is the midpoint of ac.

prove that de is parallel to bc.
you must show each stage of your working.

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

An angle that measures between 90 and 180° is called a(,

Simplify using positive exponents only.