Find the center and the radius of the circle.x2 + y2 - 4x + 4y = -4
A. (2, -2); r = 4
B. (2, -2); r = 2
C. (5, -2); r = 2
D. (2, -1); r = 2
Answer: B
Mathematics
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Find the volume of the solid generated by revolving the region about the given line.The region bounded above by the line 
, below by the curve 
, and on the right by the line 
, about the line 
A. 
?
B. 
?
C. 
?
D. 9?
Mathematics
Name the property illustrated by the statement.(2 + 6) + 3 = (6 + 2) + 3
A. associative property of addition B. additive inverse property C. distributive property D. commutative property of addition
Mathematics
Find the LCD for the given fractions.
, 
, and 
A. 30 B. 12 C. 60 D. 20
Mathematics
Express as a sum of logarithms.ln 0.2b
A. ln 0.2 - ln b B. ln 0.2 + ln b C. ln 2 - ln b D. ln(0.2 + b)
Mathematics