Solve the system of equations by graphing. If the system is inconsistent or the equations are dependent, say so.4x + y = -21  x + 6y = 12

A. {(6, 3)}
B. {(-6, 3)}
C. {(-6, -7)}
D. {(-5, -1)}

Answer: B

Mathematics

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Evaluate the integral using the given substitution., u = cot 6?

A.  csc3 6? cot2 6? + C
B.  cot2 ? + C
C. -  tan2 6? + C
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Use the graph to find the indicated function value.y = f(x). Find f(2)

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