Sketch the trace of the intersection of plane 
with the sphere:
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: D
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Find the length of the curve.32xy2 - 4y6 = 8 between y = 1 to y = 4
A. 
B. 
C. 
D. 
Solve the problem.Express cos(A + B + C) in terms of sin A, sin B, sin C, cos A, cos B, and cos C.
A. sin A cos B cos C + sin B cos A cos C + sin C cos A cos B - sin A sin B sin C B. cos A cos B cos C - sin A sin B cos C - sin A sin C cos B - sin B sin C cos A C. sin A cos B cos C + sin B cos A cos C + sin C cos A cos B + sin A sin B sin C D. sin A cos B cos C + sin B cos A cos C - sin C cos A cos B + sin A sin B sin C
Find the surface area or volume.Use substitution and a table of integrals to find, to two decimal places, the area of the surface generated by revolving the curve 
about the x-axis.
A. 90,329.45 B. 74,906.59 C. 69,213.13 D. 83,719.65
Provide an appropriate response.Solve the equation 
for x. If y is positive and b is positive, what, if anything, can you determine about the signs of the solutions? Explain your reasoning.
What will be an ideal response?