Use de moivre's theorem to write the complex number in trigonometric form. (1-i sqrt 3)^3

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

17 in long 1.3 ft wide and 8in high what is the volume

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers