Find the eccentricity of the hyperbola.Find the eccentricity of a hyperbola centered at the origin having a focus of 
and corresponding directrix 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
- 2 ? x ? 2, about the x-axis (dimensions are in feet). How many cubic feet of fuel will the tank hold to the nearest cubic foot?
A. 3 B. 8 C. 2 D. 7
Mathematics
Collect like terms.3p + 4q + 2p + 5q
A. 5p + 9q B. 3p + 9q + 2 C. 5p + 4q + 5 D. 4pq
Mathematics
List the elements of the set.If A = {55, 57, 58, 59, 62} and B = {55, 57, 58, 59}, list the elements of 
A. {55, 57, 58, 59, 62} B. {55, 57, 58, 59} C. ? D. {62}
Mathematics
Write interval notation.{ x ? x < -7 }
A. (-7, ?) B. (-?, -7] C. [-7, ?) D. (-?, -7)
Mathematics