Solve using Cramer's Rule. 6x - 9y - 4z = -3-7x + 5y + 8z = -14 9x - 7y + 3z = 55
A. (9, -5, -3)
B. (10, 3, 3)
C. (5, 3, 5)
D. (9, 5, 3)
Answer: D
Mathematics
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A. 
B. 
C. 
D. 
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Solve by the substitution method.x + y = 5x + y = 4
A. {(5, 4)} B. {(0, 9)} C. {(x, y)|x + y = 5} D. ?
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Use the definition or identities to find the exact value of the indicated trigonometric function of the acute angle ?.sec ? = 
Find cot ?.
A. 
B. 
C. 
D. 
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Find the x- and y-intercepts. If no x-intercepts exist, state so.f(x) = 4x2 + 10x + 3
A. 
, (0, -3)
B. 
, (0, 3)
C. 
, (0, -3)
D. 
, (0, 3)
Mathematics