Solve using matrices. x + y + z = 2 x - y + 5z = 163x + y + z = 8
A. (-3, 2, 3)
B. (2, -3, 3)
C. (3, -3, 2)
D. (2, 3, -3)
Answer: C
Mathematics
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Find the real or imaginary solutions by completing the square.z2 + 12z + 25 = 0
A. {6 + 
}
B. {-12 + 
}
C. {6 ± 
}
D. {-6 ± 
}
Mathematics
Find an equation of variation for the given situation.y varies inversely as x and y = 80 when x = 
A. y = 
B. y = 
C. y = 
D. y = 
Mathematics
Find the x-intercept(s) and the y-intercept of the function.F(x) = 2x2 + 2x - 112
A. (-8, 0), (-7, 0), (0, -112) B. (8, 0), (7, 0), (0, -112) C. (8, 0), (-7, 0), (0, -112) D. (-8, 0), (7, 0), (0, -112)
Mathematics
Write the fraction as a decimal. Round to the nearest thousandth if necessary.
A. 0.469 B. 0.047 C. 2.133 D. 4.688
Mathematics