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Which expression is equivalent to? assume x > 0 and y > 0.

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3