Simplify the complex rational expression.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the area of the region specified in polar coordinates.the region inside both 
and 
A. 
(? - 1)
B. 
(? - 2)
C. 
(? - 1)
D. 
(? - 2)
Mathematics
Use series to evaluate the limit.
x2
A. -1 B. 1 C. 2 D. -2
Mathematics
Solve the problem.A right triangular plate of base 4 m and height 2 m is submerged vertically, as shown below. Find the force on one side of the plate if the top vertex is 1 m below the surface. 
4 m
A. 52,000 N B. 78,000 N C. 170,000 N D. 85,000 N
Mathematics
Solve the system by substitution.x - 5y = -4x + 8y = -4
A. {(-4, 0)} B. {(0, -4)} C. {(0, 4)} D. {(4, 0)}
Mathematics