Find the following root if it exists.
A. 2
B. 4
C. 2.497
D. This root does not exist as a real number
Answer: A
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Find the domain of the rational expression.
A. {x|x is a real number and x ? 1 and x ? 2} B. {x|x is a real number and x ? 1} C. {x|x is a real number} D. {x|x is a real number and x ? 2}
Solve the problem.The ferris wheel in the figure has a radius of 42 meters. The distance between the top of the ferris wheel and the ground is 91 meters. The rectangular coordinate system shown has its origin on the ground directly below the center of the wheel. Use the coordinate system to write the equation of the circular wheel.
A. x2 + (y - 49)2 = 842 B. x2 + y2 = 422 C. x2 + (y - 49)2 = 422 D. x2 + (y + 49)2 = 422
Graph the equation by plotting points.4x2 + 4y = 16
A. 
B. 
C. 
D. 
Express the radical in simplified form.
A. -12
B. Not a real number
C. 12
D. -12