Which expression is equivalent to cos(pi/12)cos(5pi/12)+sin(pi/12)sin (5pi/12)? Cos(-pi/3)
Sin(-pi/3)
Cos(pi/2)
Sin(pi/2)

The composite figure is made up of a parallelogram and a rectangle. find the area. a. 76 sq. units b. 48 sq. units c. 124 sq. units d. 28 sq. units

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?