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Nnnnneeedd 1.find the residual if you know the actual number is 5.2 and the predicted value is 4.8

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11