Formulate the recursive formula for the following geometric sequence. {-16, 4, -1, }

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.

X+y=-4 x-y=2 use elimination with adding and subtraction

Find two consexutive odd integers such that the sum of their square is 650