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Which of the following expressions is equal to 2x^2+8

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Asystem of linear equations contains two equations with the same slope. select all of the correct statements. i a. the system may have two solutions. - b. the system may have infinitely many solutions. c. the system may have one solution. o d. the system may have no solution. submit