The diagram shows trapezium OACB. ОА = За OB = 6b AC = 4b
N is the point on OC such that ANB is a straight line.
Find ON as a simplified expression in terms of a and b.

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

What expression is equivalent to (2x-1)(x-3)?

Answer each of the questions for the following diagram: 1. what type of angles are these? 2. solve for x. what does x equal? 3. what is the measure of the angles?