two trains leave a station on different tracks. the tracks make an 112 degree angle with the stations as vertex. the first train travels at an average speed of 90 kilometers per hour and the second at an average speed of 55 kilometers per hour. how far apart are the trains after 2 hours.

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

Acompany made a profit of 75000 over a period of 6 years on an initial investment of 15000 what is the annual roi