Solve the system by elimination.4x - y = 195x + y = 35
A. ?
B. {(5, 6)}
C. {(x, y)|4x - y = 19}
D. {(6, 5)}
Answer: D
Mathematics
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Evaluate the integral.
A. 
x2e2x - 
xe2x + 
e2x + C
B. 
x2e2x - 
xe2x + 
e2x + C
C. 
x2e2x - xe2x + 
e2x + C
D. 
x2e2x - 
xe2x + C
Mathematics
Find the derivative of y with respect to the appropriate variable.y = sinh-1 (cos x)
A. 
B. 
C. - sin x
D. 
Mathematics
Write your answer in lowest terms.There are 36 inches to a yard. What fraction of a yard is 4 inches?
A. 
B. 4
C. 9
D. 
Mathematics
Solve the problem.A washer is made by removing a circular disk from the center of another circular disk of radius 4 mi. If the disk that is removed has radius x, write a completely factored polynomial whose values give the area of the washer.
A. ?(8 - x)2 B. ?(8 - x)(8 + x) C. ?(4 - x)(4 + x) D. ?(4 - x)2
Mathematics