Use Cramer's rule to determine if the system is inconsistent system or contains dependent equations.
A. system is inconsistent
B. system contains dependent equations
Answer: A
Mathematics
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Write the equation for the plane.The plane through the point P(3, -8, -10) and perpendicular to the line 
A. 5x + 5y + z = -15 B. 5x + 5y - z = -15 C. 5x + 5y - z = 0 D. 5x + 5y - z = 15
Mathematics
Evaluate the expression.(-121)1/2
A. -11 B. not a real number C. 11 D. -5.5
Mathematics
Solve and graph the solutions.
> 1
A. 
B. 
C. 
D. 
Mathematics
Find the exact value. Do not use a calculator.cos (-?)
A. 1 B. 0 C. -1 D. undefined
Mathematics