Jesse skis on a circular ski trail that has a radius of 0.7 km. Imagine an angle with a vertex at the center of the circular trail that subtends the path Jesse skis. If Jesse travels 0.42 km counter-clockwise along the ski trail, what is the angle's measure in radians

Find the value of x for which the lines are parallel.

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

20.ju inces. which ordered pair is a viable solution if x represents the number of books he orders and y represents the total weight of the books, in ounces? (-3,-18) (-0.5, -3) (0,0) (0.5, 3)