Atracking device that is installed in a mobile phone indicates that its user is located at a point whose coordinates are (18, 14). in the tracking device, each unit on the grid in equivalent to 7 km. if the phone user came from a place whose coordinates are (2, 6)? how far has he travelled?

What is the exact area of a circle with a diameter of 50 centimeters? a.87.9 square centimeters b.379.9 square centimeters c.1962.5 square centimeters d.4923.5 square centimeters

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

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