An escalator in a shopping mall is used to transport passengers a vertical distance of 31 feet to the second floor. If the escalator makes a 27-degree angle with the first floor, how long is the escalator? (Please use the exact ratio to calculate the missing side and round your answer to the nearest hundredth.)​

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.