Find the fourth roots of unity by using the method stated.
a. solve the polynomial equation x^4 = 1 algebraically.
b. use the polar form z^4 = r(cos(theta) + sin( and find the modulus and argument of z.
c. solve (a + bi)^4 = 1 by expanding (a + b)^4 and setting it equal to 1 + 0i.

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

Answer question above and explain each step : )

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?