If possible, solve each system by an algebraic method (substitution or addition method). Otherwise, state that the problem has no solution or an infinite number of solutions.
x + 
y = 0 x - y = 12
A. (5, -5)
B. (-6, -5)
C. (-6, 6)
D. (6, -6)
Answer: D
Mathematics
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Find the present value. Round to the nearest cent.
A. $23,775.16 B. $10,809.03 C. $10,767.52 D. $5,232.48
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Find the indefinite integral.
?
?
A. 
B. 
C. 
D. 
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Find (f ?g)(x) for the given functions f(x) and g(x).f(x) = x + 8 and g(x) = 8x - 3
A. 7x + 11 B. 9x + 5 C. 8x + 61 D. 8x + 5
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Use interval notation to represent the range of the function whose graph is shown. 
A. 
B. 
C. 
D. 
E. none of these
Mathematics