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:
okay so I can't see the last option on ur sheet but when u graph this equation the point that lies on the curve is (2,-3) so that is the vertex but if I move up this curved line it passes through the Y axis at (0,-1), the Last answer that I can't see it wouldn't happen to be (-1,6) would it
Answer:
-2
Step-by-step explanation:
You make x= -3 then you insert it into the problem which is x= 2(-3)+4
2 times -3 is -6 which then you would get
-6+4 which equals -2
Answer:
B. 13a + 7b + 4.5c
Step-by-step explanation:
trust me bruh
Answer: 108
Step-by-step explanation: 60% of 180 is 108