Set up an integral for the area of the surface generated by revolving the given curve about the indicated axis.x = 
dt, 0 ? y ? ?/3; y-axis
A. ?
sec y dy
B. ?
tan y dy
C. 2?
sec y dy
D. 2?
tan y dy
Answer: C
Mathematics
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Solve. Round to the nearest tenth.A 26-ft-tall ladder is placed so that it reaches 24 ft up on the wall of a house. How far is the base of the ladder from the wall of the house?
A. 1252 ft B. 35.4 ft C. 10 ft D. 100 ft
Mathematics
Use the y-intercept and slope to sketch the graph of the equation.y = -4x - 5
A. 
B. 
C. 
D. 
Mathematics
Write the equation of the ellipse in the form 
whose graph is shown.
Mathematics
A regular region of length x and width y has an area of 
square meters. The width y as a function of x is given by 
. Determine the domain of the function based on the
physical constraints of the problem.
?
A. 
B. 
C. 
D. 
E. 
Mathematics