) Which expression is equivalent to 12 + 10d -(-4)-(-8d)? 16 + 18d
8 +18d
16 + 2d
8 + 2d

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Sketch one cycle if the cosine function y=2cos2theta

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons