Answer:
A
Step-by-step explanation:
its the only negative whilst others are positive
The equation 
is quadratic equation that requires finding discriminant
Since discriminant is negative, this equation has two complex roots. Note that 
where 
is imaginary unit. Then 
Now the complex roots are
Answer: correct choice is D.
Answer: y= -4/5 and x= 29/5
Step-by-step explanation:
From eqn2 , x= 5-y. Thus substituting in eqn1 will give
6(5-y)-4y=38
30-6y-4y=38
30-10y=38
-10y=38-30
-10y= 8
y=8/-10---> y= -4/5
Substituting y in eqn2 we have
x+(-4/5)=5
x=5+4/5
x=29/5
C) 20+9-4-4
Hope this Helps!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
m is the slope and b is the y-intercept.
