1. for each equation, decide if it is always true or never true.
a. x - 13 = x+1
b. x+1/2= x-1/2
c. 2(x + 3) = 5x + 6 – 3x
d. x - 3= 2x - 3 - x
e. 3(x - 5) = 2(x - 5) + x

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

Factor 15x^3 - 5x^2 +6x-2 by grouping. what is the resulting expression

Question 2 (essay worth 10 points) (03.02 mc) in δabc shown below, point a is at (0, 0), point b is at (x2, 0), point c is at (x1, y1), point d is at x sub 1 over 2, y sub 1 over 2, and point e is at the quantity of x sub 1 plus x sub 2 over 2, y sub 1 over 2: triangle abc is shown. point d lies on segment ac and point e lies on segment bc. a segment is drawn between points d and e. point a is at the origin. prove that segment de is parallel to segment ab.