Simplify r2-2r3+3r2 me i forgot the steps

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

Describe the relationship between the angles of similar triangles and the sides of similar triangles