Simplify [2 (cos 210 + i sin 210)]^3

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

One integer is 8 times another. if the product is 72, then find the integers

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)