Evaluate the improper integral.
A. 6
B. 4
C. 12
D. 8
Answer: C
Mathematics
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Test the vector field F to determine if it is conservative.F = 
i + 
j - 
k
A. Not conservative B. Conservative
Mathematics
Find the vertices and foci of the ellipse.81x2 + 36y2 = 2,916
A. Vertices: (±6, 0); Foci: (±3
, 0)
B. Vertices: (0, ±6); Foci: (0, ±3
)
C. Vertices: (0, ±9); Foci: (0, ±3
)
D. Vertices: (±9, 0); Foci: (±3
, 0)
Mathematics
Use graphical methods to find all real solutions to the following equation. Express solutions rounded to the nearest hundredth.4x3 + x2 - 20x - 5 = 0
A. {0.25, 2.24, -2.24} B. {-0.25, 2.24, -2.24} C. {4, 2.14, -2.14} D. {-4, 2.34, -2.34}
Mathematics
Evaluate the integral.
A. 2
B. 
C. 
D. 4
Mathematics