Use reference angles to find the exact value of the expression.tan 
A. 1
B. 
C. -1
D. 
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 x-axis.x = 4y - y2, x = 0
A. 
?
B. 
?
C. 
?
D. 
?
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = 3xy2i + 3x2yj + 2xyk ; D: the region cut from the solid cylinder x2 + y2 ? 9 by the planes z = 0 and 
A. 486?
B. 
?
C. 243?
D. 972?
Solve the problem. Round your answer to the nearest tenth, when appropriate.The function defined by 
gives the distance in feet that a car going approximately 
will skid in t seconds. Find the time it would take for the car to skid 
.
A. 10.2 sec B. 10.6 sec C. 9.2 sec D. 10.4 sec
Graph the ellipse and locate the foci.4x2 + 9y2 = 36
A. foci at (
, 0) and (-
, 0)
B. foci at (
, 0) and (-
, 0)
C. foci at (2
, 0) and (-2
, 0)
D. foci at (0, 
) and (0, -
)