Find the volume of the solid generated by revolving the region about the given line.The region bounded by the line 
, by the curve 
, by the line 
, and by the line 
about the line 
.
A. 24?
B. 48? - 32
C. 24? - 64
D. 8?
Answer: C
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Solve the given applied problems involving variation.At a fixed temperature, the resistance R of a wire varies directly as the length l and inversely as the square of its diameter d. If the resistance is 1.4 ohm when the diameter is 1 mm and the length is 280 cm, what is the resistance when the diameter is 4 mm and the length is 1870 cm?
A. 0.584 ohm B. 116.875 ohm C. 163.625 ohm D. 2.338 ohm
Solve the equation on the interval 0 ? ? < 2?.cos(2?) = 
- cos(2?)
A. 
B. No solution
C. 
D. 
Solve by graphing. Label the axes and show where the solution is located on the graph.Alison sets aside 
each month to spend on books and CDs. If she spends c dollars on CDs in a given month she may spend b dollars on books where 
Graph the equation and use the graph to estimate the amount Alison may spend on books in March if she spends 
on CDs.
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A. $31
B. $35
C. $66
D. $24
Answer the question.What is the reciprocal of 
?
A. 1
B. 
C. 
D. 