#3. Suppose you have a minimizationproblem and an algorithm A, that has an approximation ratio of 4. When run on some input I, A produced a solution with cost 20. What can you say about the optimal answer (let’s call it OPT)?Mark "true" or "false" for inequalities below and briefly explain your answer(s).• OP T ≥ 5• OP T < 5• OP T > 80• OP T ≤ 80

Which parts of a presentation should be the most general? a. introduction and conclusion b. introduction and outline c. outline and conclusion d. outline and body

What is wi-fi infrastructure? a metropolitan area network that uses radio signals to transmit and receive data a communications technology aimed at providing high-speed wireless data over metropolitan area networks a means by which portable devices can connect wirelessly to a local area network, using access points that send and receive data via radio waves includes the inner workings of a wi-fi service or utility, including the signal transmitters, towers, or poles and additional equipment required to send out a wi-fi signal

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