Answer:
this systems shows only one solution... not no solution.
Complete Question
The complete question is shown on the first uploaded image
Answer:
The correct option is A
Step-by-step explanation:
Now from the diagram given in the question we can deduce that
=>
=>
Answer:
See explanation
Step-by-step explanation:
The discriminant is
1. 9² - 4(1)(20) = 81 - 80 = 1 so there are 2 solutions
2. (-9)² - 4(3)(-13) = 81 + 156 = 237, so there are 2 solutions
3. The first answer is correct
4. The third answer is correct