Find the cube roots of unity by using each method stated.
a. solve the polynomial equation x^3 = 1 algebraically.
b. use the polar form z^3 = r(cos(theta) + sin( and find the modulus and argument of z.
c. solve (a + bi)^3 = 1 by expanding (aa + bi)^3 and setting it equal to 1 + 0i.

Lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. use the drop-down menus to identify the steps lorne used to find the difference.

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?