Find the domain of the expression.
?
?
A. all real numbers
B. all real numbers except x =-7
C. all real numbers except x = 8
D. all real numbers except x = 8 and x = -7
E. x = 8 or x = -7
Answer: B
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Provide an appropriate response.If 
and 
both converge conditionally, what can be said about 
?
A. The series always diverges. B. The series may converge or diverge. C. The series always converges.
Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region in the first quadrant bounded by x = 5y - y2 and the y-axis about the y-axis
A. 
?
B. 
?
C. 
?
D. 
?
Find the product.(11 cot2y - tan2y)2
A. 121 cot4y - 22 cot2y + tan4y B. 121 cot4y + tan4y C. 121 cot4y - 22 - tan4y D. 121 cot4y - 22 + tan4y
Solve.The following table shows per capita health care expenditures (in dollars) from 2003 to 2008. 
The logarithmic model that fits this data is E = f(x) = 3130 + 720 ln x, where E represents the per capita health care expenditures and x is the number of years since 2002. Use this model to predict in what year health care expenditures will reach $5,400.
A. 2,025 B. 2,028 C. 2,027 D. 2,026