Give all solutions of the nonlinear system of equations, including those with nonreal complex components.  xy = 30x + y = -11

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


Answer: D

Mathematics

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Determine whether the given linear equations are parallel, perpendicular, or neither.-4 x + y = 103x + y = -4

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Solve the problem.A certain company has found that its expenditure rate per day (in hundreds of dollars) on a certain type of job is given by  where x is the number of days since the start of the job. Find the expenditure if the job takes 5 days.

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Mathematics