Solve the system using matrices. If there is no solution or if there are infinitely many solutions and a system's equations are dependent, so state.
A. {(5, -1, 2)}
B. infinitely many solutions; dependent equations
C. no solution or ?
D. {(5, 2, -1)}
Answer: C
Mathematics
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Solve. The polynomial 8x3 + 24x2 - 320x represents the volume of a rectangular solid. Factor the polynomial.
A. 8x(x - 8)(x - 5) B. 8x(x + 8)(x + 5) C. 8x(x - 8)(x + 5) D. 8x(x + 8)(x - 5)
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Determine whether the vectors v and w are orthogonal.v = 2i - 6j, w = -6i + 2j
A. Not orthogonal B. Orthogonal
Mathematics
Solve the inequality. Give the solution set in both interval and graph forms.
< - 
A. 
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B.
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C.
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D.
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Mathematics
Use the change of base formula to approximate the logarithm to four decimal places.log5 0.847
A. -0.1032 B. 5.9032 C. -9.6922 D. -0.0721
Mathematics