Find the slope of the polar curve at the indicated point.r = 2 csc ?, ? = 
A. 0
B. -1
C. Undefined
D. 1
Answer: A
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 5x3, y = 5x, for x ? 0
A. 
?
B. 
?
C. 
?
D. 2?
Provide an appropriate response.Find the vertex and the axis of symmetry of the graph of y = x2 + 9x + 8.
A. vertex: 
; axis of symmetry x = - 
B. vertex:
; axis of symmetry x = - 
C. vertex: 
; axis of symmetry x = 
D. vertex: 
; axis of symmetry x = 
Find the product AB.A = 
, B = 
A. 
B. 
C. 
D. 
Solve the problem.Since life expectancy has increased in the last century, the number of Alzheimer's patients has increased dramatically. The number of patients in the United States reached 4 million in 2000. Using data collected since 2000, it has been found that the data can be modeled by the exponential function 
where x is the years since 2000. Estimate the Alzheimer's patients in 2025. Round to the nearest tenth.
A. 3.9 million B. 4.8 million C. 8.0 million D. 7.8 million