(3+4i)*4 = 3*4+4i*4 = 12+16i
The complex number 12+16i is in the form a+bi where a = 12 and b = 16
m = modulus
m = distance from (0,0) to (a,b)
m = sqrt(a^2+b^2)
m = sqrt(12^2+16^2)
m = sqrt(144+256)
m = sqrt(400)
m = 20
Answer: 20
Answer:
1'3'5'4
Step-by-step explanation:
To solve this, we are going to set up a simple rule of three: If 20% are 48 cars, 100% how many cars will be:

Now, we can express this as a proportion ans solve for

:


We can conclude that there are 240 cars in the parking lot.