Find the value of x, given that all the segments that appear tangent are tangent.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

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.

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box