On oct. 15, 2003, yang liwei orbited the earth 14 times in 21 hours for the country of china. how
many hours did it take liwei to orbit the earth one time?
0.67 hour
1.5 hours
7.0 hours
294 hours

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Based on the diagram, match the trigonometric ratios with the corresponding ratios of the sides of the triangle. tiles : cosb sinb tanb sincposs matches: c/b b/a b/c c/a

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.