PLEASE HELP (TRIGONOMETRY) Also, there is a symbol I've literally never seen before, so if anyone knows what that is then please let me know.

The horizontal distance of a projectile is modeled by, D = , when D is the distance and (symbol shown in image) is the launch angle. What would the horizontal distance be if the launch angle is 0.9 radians?

Abc will undergo two transformations to give aa'b'c' which pair of transformations will give a different image of aabc if the order of the transformations is reversed? a. a rotation 90' counterclockwise about the origin followed by a reflection across the y-axis b a translation 5 units down followed by a translation 4 units to the right c. a reflection across the x-axis followed by a reflection across the y-axis a rotation 180'clockwise about the ongin followed by a reflection across the y-axis reset next 2 omentum all rights reserved o atk me anything o o e

Which linear inequality is represented by the graph?

Is (root2 -2)^2 rational or irrational. show the steps and answer fast