Solve the system by the addition method. Be sure to check all proposed solutions.x + y = 4x - y = -12
A. {(-4, 8)}
B. {(4, 9)}
C. {(-5, 9)}
D. ?
Answer: A
Mathematics
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x 103 m, what is the distance to the sun in meters?
A. 5.7 x 1010 m B. 1.50 x 1011 m C. 5.7 x 10-10 m D. 1.50 x 1010 m
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Determine whether the improper integral converges or diverges.
A. Diverges B. Converges
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Determine whether or not the function is one-to-one.f(x) = 
A. Yes B. No
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Determine the value that the function f approaches as the magnitude of x increases.
?
?
A. 0
B. 
C. -1
D. 8
E. 
Mathematics