Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set. 8x + 7z = 59-7x + 8y + 8z = 83 8x - 5y = -16
A. {(3, 8, 5)}
B. {(3, -8, -5)}
C. {(8, 5, 8)}
D. ({4, 6, 5)}
Answer: A
Mathematics
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A. 106,793 B. 106,803 C. 126,903 D. 301,725
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Find the domain and range of the inverse of the given function.f(x) = 
, x ? 0
A. Domain and range: [0, ?) B. Domain: (-?, 0}; range: [-9, 0) C. Domain: (0, 9]; range: [0, ?) D. Domain: [0, ?); range: (0, 9]
Mathematics
Solve the inequality.x2 + 2x ? 0
A. [-2, 0] B. [0, 2] C. (-?, 0] or [2, ?) D. (-?, -2] or [0, ?)
Mathematics
Solve the problem.Given that P(A) = 0.53, P(A ? B) = 0.89, and P(A ? B) = 0.22, find P(B).
A. 0.8 B. 0.58 C. 0.36 D. 0.31
Mathematics