I need help what is -0.5 _ -0.2

17 in long 1.3 ft wide and 8in high what is the volume

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

Sketch one cycle if the cosine function y=2cos2theta