Solve the problem.The shape of a parabolic flashlight reflector can be described by the equation x = 5y2. Where should the light bulb be placed?
A. 
B. 
C. (20, 0)
D. 
Answer: D
Mathematics
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Use roster notation to write the set.The set consisting of the first 5 even natural numbers
A. {1, 3, 5, 7, 9} B. {2, 4, 6, 8, 10} C. {0, 2, 4, 6, 8} D. {1, 2, 3, 4, 5}
Mathematics
Express the area of the region bounded by the given line(s) and/or curve(s) as an iterated double integral.The coordinate axes and the line 
A. 
B. 
C. 
D. 
Mathematics
Solve the equation by factoring.12x2 - 5x - 25 = 0
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression.(-y)7 ? (-y)8
A. (-y)15 B. (-y)56 C. (y)56 D. (y)15
Mathematics