ANSWER
The discriminant is -3
EXPLANATION
The given quadratic equation is:

Comparing this equation to:

we have
a=1, b=3, and c=-6
The discriminant is calculated using the formula,

We substitute the values to get:



8,000,000 + 200,000 + 5,000
Solve for x
2x+3y=9
2x=9-3y
2x/2 = 9-3y/2
X=9-3y/2
Solve for Y
2x+3y=9
3y=9-2x
3y/3 = 9-2x/3
Y=9-2x/3
Y=-2x/3 + 3
Answer:
77 rows.
Step-by-step explanation:
6000 - 71 = 5929
So this number of students form a square.
As it is a square number of rows = number of columns, so:
Number of rows = √5929 = 77.