Which quarters of the unit circle satisfy the trigonometric inequality tan∅ ≤ 0? Assume that ∅ is the angle made by the positive x-axis and a ray from the origin. A) the top right and bottom right quarters
B) the top right and bottom left quarters
C) the top left and bottom right quarters
D) the top left and bottom left quarters

Write and solve a real word problem that involves determining distance on a coordinate plane

How do you write y-10=2 (x-8) in standard form

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