Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.15
+ 3
A. 15
B. 18
C. 19
D. 17
Answer: B
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Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region bounded by y = 5
, y = 5, and x = 0 about the line x = 1
A. 
?
B. 
?
C. 
?
D. 
?
Find the absolute extreme values of the function on the interval.f(x) = tan x, - 
? x ? 
A. absolute maximum is -1 at x = 
; absolute minimum is 
at x = - 
B. absolute maximum is 
at x = 
; absolute minimum is -1 at x = - 
C. absolute maximum is 
at x = 
and - 
; no minimum value
D. absolute maximum is 
at x = 
; absolute minimum is -1 at x = - 
Solve the problem.The volume of wood, V, obtained from a tree varies jointly as the height, h, and the square of the girth (the distance around the tree trunk), g. If the volume is 38.4 ft3 when the height is 30 ft and the girth is 
what is the volume when the height is 40 ft and the girth is 6 ft?
A. 110.96 ft3 B. 117.55 ft3 C. 115.2 ft3 D. 118.2 ft3
Solve.x2 + y2 = 65xy = 8
A. (8, 1), (2, 8), (-8, -1), (-2, -8) B. (16, 1), (1, 8), (-16, -1), (-1, -8) C. (8, 1), (1, 8), (-8, -1), (-1, -8) D. (1, 1), (1, 8), (-1, -1), (-1, -8)