9514 1404 393
Answer:
a) (-5±√10)/3 ≈ {-2.721, -0.613}
b) (6±√21)/5 ≈ {0.283, 2.117}
Step-by-step explanation:
a) The relevant coefficients are ...
a = 3, b = 10, c = 5

__
b) The relevant coefficients are ...
a = 5, b = -12, c = 3

Answer:
2.5 hours
Step-by-step explanation:
To get the hourly speed, we need to divide 430 by 5.
This means that the train is going at a speed of 86 miles/hour.
Since we need to find the hour, we need to divide 215 miles by 86 miles/hour.

We can use the keep change flip to do 
This would give us 2.5 hours.
2x10^2 is greater because it’s going to equal 200 and 3^3 +9 only equals 36 and by how much it would be 164!
The answer is 3 becuase you have to find the answer
That's the anserduhhhhhhhhhh