Which expression is equivalent to cos(pi/12)cos(5pi/12)+sin(pi/12)sin (5pi/12)? a. cos(-pi/3)
b. sin(-pi/3)
c. cos(pi/2)
d. sin(pi/2)

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x -4 0 for x? cos -3+ v (3) 2-4() 2(5) 3+ |(3)² +4() 205) 3+ (3) 2-4() -3+ v (3)² +4()

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3