Rationalize the denominator and simplify.
A. 5
B. 
C. 
D. 5
Answer: C
Mathematics
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Solve the equation. ? 6b + 3 = 63 ?
A. b = 18 B. b = 10 C. b = 8 D. b = 13 E. none of these
Mathematics
Perform the indicated operations. Simplify the answer.
A. 
B. 11
C. 11i
D. i
Mathematics
Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = -2 and x = 2. The cross sections perpendicular to the x-axis are circles whose diameters stretch from the curve 
to the curve 
A. 
?2
B. 81?
C. 81?2
D. 
?2
Mathematics
Solve.Find the unknown side.V = 660 ft3 
A. W = 1 ft B. W = 2 ft C. W = 20 ft D. W = 4 ft
Mathematics