Answer: 6.71
Explanation:
1) The absolute value of a complex number a + bi is √ [ (a)² + (b)²]
2) The given number - 3 - 6i is equivalent to (-3) + (-6)i, so you see that a = -3 and b = - 6.
3) Therefore, the absolute value is √ [ (-3)² + (-6)² ] = √ [ 9 + 36] = √(45) ≈ 6.708 ≈ 6.71
