The discriminant of a quadratic equation determines the nature of the roots of the equation whether they are rel or imaginary. The formula for determining the discriminant is d = b2 - 4acwhen there are two identical real roots, then the discriminant is equal to zero. The answer is C.
In 2 2/3 months you ran 76 miles. To know how many miles you ran each month, you can simply use cross multiplication as follows: number of miles per month= (76) / (2 2/3) = 28.5 miles
