Which graph shows this set of transformations applied to the parent cosine function?
. • a reflection across the x-axis
•• a shift of 2 units up
• a vertical compression by a factor of 0.5

Write each expression in exponential form and find its value. 2 x 2 x 2 x 2

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.

Find the solution of this system of equation -7x+y=-20 9x-3y=36