Solve the system by the substitution method.
A. (4, 4), (7, 1)
B. (4, 12), (7, 1)
C. (-4, 12), (-7, 15)
D. (6, 2)
Answer: A
Mathematics
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Find the domain and graph the function.G(x) = 
A. D: (-?, ?)
B. D: [0, ?)
C. D: (-?, 0]
D. D: (-?, 0)
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Find all the second order partial derivatives of the given function.f(x, y) = ln (x2y - x)
A. 
= 
; 
= 
; 
= 
= 
B. 
= 
; 
= - 
; 
= 
= - 
C. 
= 
; 
= - 
; 
= 
= - 
D. 
= 
; 
= - 
; 
= 
= - 
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Write the complete binomial expansion.(5x + 3)3
A. 25x6 + 15x3 + 27 B. 125x3 + 27 C. 25x2 + 30x + 9 D. 125x3 + 225x2 + 135x + 27
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