Find the centroid of the region bounded by the graphs of the given equations. 
Definitions:
East St. Louis
A city in Illinois notable for the 1917 race riot, one of the most violent episodes of racial conflict in the 20th-century United States.
Riot
A violent disturbance by a crowd, often a symptom of social unrest or protest against authority or government policies.
Nannie Helen Burroughs
An African American educator, orator, religious leader, and businesswoman, known for her activism for women's rights and the education of black children, founding the National Training School for Women and Girls in Washington, D.C., in 1909.
War Department
Former name for what is now the Department of Defense in the United States, responsible for military affairs until it was restructured in 1947.
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