SOLUTION: Which of the following is |-3-6i| A) ±3i sqrt(5) B) ±3 sqrt(5) C) 3 sqrt(5i) D) 3 sqrt(5)

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: Which of the following is |-3-6i| A) ±3i sqrt(5) B) ±3 sqrt(5) C) 3 sqrt(5i) D) 3 sqrt(5)      Log On


   

Question 1119023: Which of the following is |-3-6i|
A) ±3i sqrt(5)
B) ±3 sqrt(5)
C) 3 sqrt(5i)
D) 3 sqrt(5)
Answer by ikleyn(52748) About Me  (Show Source):
You can put this solution on YOUR website!
.
|-3 - 6i| = sqrt%28%28-3%29%5E2+%2B+%28-6%29%5E2%29 = sqrt%289+%2B+36%29 = sqrt%2845%29 = 3%2Asqrt%285%29.


Option D) of your list.