Answer:
The solution is the point (2,-5)
Step-by-step explanation:
we have
------> equation A
------> equation B
Multiply equation B by 2 both sides
------> equation C
Adds equation A and equation C
Find the value of y
substitute the value of x in equation A
The solution is the point (2,-5)
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:
Answer:
x=3
Step-by-step explanation:
3*3=9-1=8 so it is still bigger
