Solve using Cramer's rule. 2x + 9y - z = 89 x + 9y + 5z = 107 7x + y + z = 55
A. (7, 7, 4)
B. (6, 9, 4)
C. (9, 4, 9)
D. (6, -9, -4)
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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Evaluate.(-3)3
A. 27 B. 9 C. -81 D. -27
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Use the square root property to solve the equation.x2 = 171
A. {3
}
B. {19}
C. {-3
, 3
}
D. {
}
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