Solve the problem.At the two points where the curve x2 + 2xy + y2 = 25 crosses the x-axis, the tangent lines are parallel. Find the common slope of these tangents.
A. -1
B. 1
C. 
D. -5
Answer: A
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated line.About the line y = -1x = 
(solid)
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Find the sum of the series by recognizing how it is related to something familiar.2 + 
+ 
+ 
+ . . .
A. 2e4x B. e4x + e-4x C. 2e-4x D. e4x - e-4x
Mathematics
Simplify using order of operations.-4 + 6(4 - 9)
A. -10 B. 34 C. -34 D. 10
Mathematics
Solve the problem.David's company has to ship 4950 boxes of sprinklers. If a truck can hold 550 boxes, how many truckloads does he need to ship all the boxes?
A. 8 truckloads B. 7 truckloads C. 9 truckloads D. 10 truckloads
Mathematics