Find the volume of the solid of revolution formed by rotating about the x-axis the region bounded by the curves.y = 
, y = 0, x = 1, x = 9
A. 
?
B. ? ln 9
C. 
?
D. 
?
Answer: C
Mathematics
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Graph the circle.x2 + y2 - 2x - 6y + 1 = 0
A. 
B. 
C. 
D. 
Mathematics
Multiply. Simplify by combining like terms.
2
A. 81x2y2 - 
xy - 
B. 81x2y2 + 2xy
C. 
x2y2 + 2xy + 81
D. 
x2y2 - 2xy + 81
Mathematics
Establish the identity.cos(4?) = cos4 ? - 6 sin2 ? cos2 ? + sin4 ?
What will be an ideal response?
Mathematics
Find all solutions of the given equation in the interval [0, 2?).
?
?
?
A. ?
B. ?
C. ?
D. ?
E. ?x = 0
Mathematics