Express the following in exponential notation. (-8) x ... (-8) 20 times= (-28) (-8) 8 (-160) 28, 160, 28.

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.

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

If the discriminant if a quadratic equation is 4 which statement describes the roots?