Given a quadratic equation 
, we define the discriminant as
The number of real solutions of the equation depend on the sign of 
:
- If
the equation has two solutions - If
the equation has one double solution - If
the equation has no real solutions
In this case, we have
And so this equation has no real solutions.
5/9(f-32)=c
5/9f+5/9*-32=c: step 1
5f/9-160/9=c: step 2
5f/9-160/9+160/9=c+160/9: step 3
5f/9=160/9*9+c*9: step 4
5f/5=160/5+9c/5: step 5
f=32+(9c/5): answer
Answer:
B
Step-by-step explanation:
the solution to a system of equations is at the points of intersection of the 2 lines.
the given lines only intersect once , thus there is only 1 solution
