Find the derivative.y = 
+ 10 sec x
A. y ' = - 
+ 10 sec x tan x
B. y ' = - 
- 10 csc x
C. y ' = 
- 10 sec x tan x
D. y ' = - 
+ 10 tan2x
Answer: A
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Find the volume of the solid generated by revolving the shaded region about the given axis.About the x-axis
A. 2?2 - 4? B. 2?2 - 2? C. 2?2 D. 2?2 + 4?
Solve and check.317 = 31.7x
A. x = 307
B. x = 
C. x = 285.3
D. x = 10
Solve the equation.(10 + x)1/2 + (11 - 5x)1/2 = -1
A. 
B. {0}
C. ?
D. {1}
Solve the problem.Several years ago, a large city undertook a major effort to encourage carpooling in order to reduce traffic congestion. The accompanying table shows the number of carpoolers, in thousands, from 2007 to 2012. Use regression to obtain a function src="https://sciemce.com/media/4/ppg__rer0516192143__f1q117g4.jpg" style="vertical-align: -15.0px;" />
A. f(x) = 4.29 + 5.14 ln x
B. f(x) = 4.33 + 5.17 ln x
C. f(x) = 4.40 + 5.32 ln x
D. f(x) = 4.22 + 5.25 ln x
that models the data, where 
corresponds to 2007, 
to 2008, and so on. Round the constants a and b to the nearest hundredth.