What is 3x+28 x+54 with a 90 degree ​

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

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