Which of the following graphs matches the table below? x -6 -3 0 3 6 y 6 4 2 0 -2 W. X. Y. Z. A. X B. W C. Y D. Z

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.

If square root x = -7, then x= -49 true or false

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?