Write interval notation.{x? x > -7}
A. (-?, -7)
B. (-7, ?)
C. [-7, ?)
D. (-?, -7]
Answer: B
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Rationalize the denominator. Simplify, if possible.
A. 
B. 
C. 
D. 
Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated line.About the line y = -1
A. 288? B. 144? C. 216? D. 864?
For what values of x does the series converge absolutely?
A. - 
< x ? - 
B. - 
? x < - 
C. - 
< x < - 
D. - 
< x < - 
Which of the following physical situations would best be modeled by the graph?
A. The monthly average ocean temperature y in degrees Fahrenheit during month t, where t = 1 corresponds to January.
B. The length y of a shadow cast by a horizontal flagpole on a vertical wall between sunrise and noon, where t is the angle shown.
C. The number of hours y of sunlight during month t, where t = 1 corresponds to January.
D. The length y of a shadow cast by a tree between sunrise and noon, where t is the angle of elevation of the sun.