Find the center and radius of the circle.x2 + 6x + 9 + (y - 9)2 = 81
A. (9, -3), r = 9
B. (-3, 9), r = 9
C. (3, -9), r = 81
D. (-9, 3), r = 81
Answer: B
Mathematics
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Provide an appropriate response.Give the reciprocal of 
.
A. 
B. 1
C. 
D. - 
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Solve.Z = A(1 + x)1/3, for x
A. x = 
3
B. x = 
3 - 1
C. x = 
3
D. x = 
3 + 1
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Solve the system of linear equations.-0.5x - 0.1y = -1.60.1x - 0.4y = -0.1
A. (2.4, 3.3) B. No solution C. (3,1) D. (6.3, 5.5)
Mathematics
Write the partial fraction decomposition of the rational expression.
A. 
+ 
+ 
B. 
+ 
+ 
C. 
+ 
+ 
D. 
+ 
+ 
Mathematics