Answer:

Step-by-step explanation:
x² = 19x + 12
⇔ x² - 19x - 12 = 0
Calculating the discriminant :
b² - 4ac = (-19)² - 4×1×(-12) = 409
The discriminant is positive ,then the equation has two solutions.

Answer:
105 miles
Step-by-step explanation:
I used a calculator because it was multi choice until they matched up
Step-by-step explanation:
6000
your answer is 6000