Use Cramer's rule to solve the linear system.
A. {(6, 7, 6)}
B. {(5, 4, 7)}
C. {(4, -6, -7)}
D. {(4, 6, 7)}
Answer: D
Mathematics
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Write the improper fraction as a mixed number.
A. 8
B. 7
C. 6
D. 7
Mathematics
Use Cramer's rule to solve the system of equations. If D = 0, use another method to determine the solution set.2x + 5y + z = -64x - 3y - z = 243x + y + 3z = 12
A. {(1, -3, 4)} B. {(4, 1, -3)} C. {(4, -3, 1)} D. Cramer's rule does not apply since D = 0; ?
Mathematics
Solve and graph the solutions.
? 8
A. 
B. 
C. 
D. 
Mathematics
Write the expression with positive exponents only. Then simplify, if possible.-2-4
A. - 
B. 16
C. 
D. -16
Mathematics