A window pane connecting the midpoints of two sides of a triangular window is represented by AB in the figure. The measurements shown are in millimeters. Find the length of the window pane.

The length of the window pane is ___ millimeters.

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Negative 5 1/12 + negative 4 1/4 + 6 3/4

Sketch one cycle if the cosine function y=2cos2theta