Solve.4(2z - 5) = 7(z + 4)
A. 12
B. -8
C. 8
D. 48
Answer: D
Mathematics
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Solve the problem.Find the moment of inertia about the origin of a thin plane of constant density 
bounded by the coordinate axes and the line 
.
A. 16 B. 256 C. 64 D. 384
Mathematics
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 = 4
, y = 4, and x = 0 about the line y = 4
A. 
?
B. 
?
C. 
?
D. 8?
Mathematics
Simplify the radical expression. Assume that all variables represent positive real numbers.
A. 
B. 
C. x9
D. 9x9
Mathematics
Find the indicated angle.Find the complement of 72°.
A. 108° B. 18° C. 288° D. 198°
Mathematics