Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = -16, y = 28, z = 32; (-16, 28, 32)
B. x = -8, y = 6, z = 9; (-8, 6, 9)
C. x = - 
y + 2z - 
, y is any real number, z is any real number
or 
D. inconsistent
Answer: C
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Solve the problems.At the beginning of the year, Jon was 48.3 inches tall. By the end of the year, he had grown 1.8 inches. What was his height at the end of the year?
A. 66.3 in. B. 50.2 in. C. 50.1 in. D. 49.1 in.
Provide an appropriate response.Solve the compound inequality: 2 ? x - 1 ? 7
A. x ? 3 or x ? 8 B. 1 ? x ? 6 C. 3 ? x ? 8 D. 2 ? x ? 8
For the given polar equation, write an equivalent rectangular equation.r2 = 28 rcos ? - 6r sin ? - 9
A. (x + 28)2 + (y - 6)2 = 9 B. (x - 14)2 + (y + 3)2 = 9 C. (x - 14)2 + (y + 3)2 = 196 D. 28x - 6y = 9
Solve for the requested variable.m varies directly as p, and m = 56 when p = 7. Find m when p is 5.
A. m = 64 B. m = 40 C. m = 25 D. m = 49