The question is in the picture

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?

The radius of the circle below intersects the unit circle at (3/5,4/5). what is the approximate value of theta? 0.6 radians 1.0 radians 36.9 degrees 53.1 degrees