For the general quadratic equation ax^2 + bx + c = 0 the discriminant is b^2 - 4ac.

So, for x^2 + x + 2 = 0, a = 1, b = 1, and c = 2, therefore

b^2 - 4ac = 1^2 - 4(1)(2) = 1 - 8 = - 7.

Answer: - 7

7 0

3 years ago

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Please answer my questionnn

Kaylis [27]

Hey There,

This is a subtracting fractions problem.

Solutions-

1. Convert $5 \frac{7}{10}$ to an improper question. You do this by multiplying the denominator and the whole number and adding that number to the numerator. The improper fraction would be $\frac{50}{7}$ 

2. Now, subtract $\frac{140}{0}- \frac{15}{10}$

3. The answer to step two should be $\frac{125}{10}$

Thus, the answer should be $\frac{125}{10}=12 \frac{1}{2}$

In conclusion, Jeff drives $12\frac{1}{2}$ miles farther then her sister.

Thank You!

5 0

3 years ago