Answer:
where a = 1, b = 1,and c=-4
Step-by-step explanation:
To solve, use the quadratic formula. Using the quadratic formula, requires the standard form
Here a = 1, b = 1, and c = -4.
The quadratic formula is
.
Substitute and you'll have:
Answer:
3,500
Step-by-step explanation:
42,000 divided by 12 = 3,200
Answer:
5 Miles
Step-by-step explanation:
5 Miles = 1 Miles = $2 X 5 = $10
1 Person = $1
Therefore 2 People = $1 X 2
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