Find the center and radius of the circle with the given equation. Then select the correct graph of the circle.

x2 + 2x + y2 + 4y + 1 = 0

The center is located at ( , ) and the radius is

Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.

Simplify (4x^2 - 8xy + 2y^2) - (9x^2 - 4xy - 7y^2) a. -5x^2 + 4xy + 9y^2 b. -5x^2 - 4xy + 9y^2 c. -5x^2 + 12xy + 4y^2 d. -5x^2 - 4xy - 5y^2

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i