Answer:

Step-by-step explanation:
Find the magnitude of the complex number
Notice the magnitude is equal to

where a is the real number and b is the imaginary number.
Substitute



Multiply this by -5

In this problem, we are given the equations of the two sides
of a rhombus.
Equation 1 is 4 x – 10
Equation 2 is 2 x + 20
Since the given shape is a rhombus, therefore the two sides
have equal sides. Hence, we can simply equate equation 1 and equation 2:
4 x – 10 = 2 x + 20
2 x = 30
x = 15
Therefore the answer is:
A. 15
1) 94
2) 77
3) 290
4) 682
5) 45
6) 925
7) 416
9 in the first box and 3 in the second :)