Curve Fitting: In Exercises 87-92, use a system of linear equations to find the quadratic function
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- System of Linear Equations. In Exercises 57-62, use a software program or a graphing utility to solve the system of linear equations. 123.5x+61.3y32.4z=262.7454.7x45.6y+98.2z=197.442.4x89.3y+12.9z=33.66arrow_forwardIn Exercises 1-6, determine which equations are linear equations in the variables x, y, and z. If any equation is not linear, explain why not. 1.arrow_forward
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