Determine whether QR and ST are parallel, perpendicular, or neither Q(-1,4), R(-1, -9), S(11,-2),T(11,6)

Classify each polynomial by its degree and by its number of terms.

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Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.