Simplify 4(6 - 2x) - 3(3 - 4x)

4x + 15
15 - 20x
15 - 6x

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°

(x-5)1/2+5=2 what is possible solution of this equation