Step 2 is put the x's together and then the y's step 3 is add the like terms
step 4 is just simplify
step 5 is multiply all terms together
and step 6 is take the answer u got and that should be the radius of the circle.
Answer is B. second choice
Segments DE and AC are parallel by construction
Answer:
The discriminant of the quadratic equation is -7.
Step-by-step explanation:
We are given the following quadratic equation in the question:
![x^2+x+2 = 0](https://tex.z-dn.net/?f=x%5E2%2Bx%2B2%20%3D%200)
Comparing to general quadratic equation:
![ax^2+bx+c = 0\\a = 1\\b = 1\\c = 2](https://tex.z-dn.net/?f=ax%5E2%2Bbx%2Bc%20%3D%200%5C%5Ca%20%3D%201%5C%5Cb%20%3D%201%5C%5Cc%20%3D%202)
We have to find the discriminant of the quadratic equation.
Formula:
![d = b^2-4ac](https://tex.z-dn.net/?f=d%20%3D%20b%5E2-4ac)
Putting values, we get,
![d = (1)^2 - 4(1)(2) = 1 - 8 = -7](https://tex.z-dn.net/?f=d%20%3D%20%281%29%5E2%20-%204%281%29%282%29%20%3D%201%20-%208%20%3D%20-7)
Thus, the discriminant of the quadratic equation is -7.
Answer:
- (6/231)
Step-by-step explanation:
divide 6 by -7, will be -(6/7), then multiply 3 by 11, will be 33, then multiply the denominator (7) by 33, will be -(6/231)