A complex number has a real and an imaginary part
is a complex number
A complex number is represented as:
Where:
<em />
<em> real</em>
<em />
<em> imaginary</em>
<em />
By comparing the options to ;
and 
are not complex numbers
This is so because they do not have imaginary parts
However,
is a complex number
Because; 9i is imaginary
Read more about complex numbers at:
brainly.com/question/19007885
Answer: this is so easy you got this
Step-by-step explanation:
YOU WILL NEVER SUCCEED IF YOU DON’T TRY
search it up if you really need help
Answer:
radius = 15ft
diameter = 30ft
Step-by-step explanation:
#1: The sum of q and 5
#2: Twelve times x
Please do as many as you can by yourself and ask questions about those that are hard for you.
