Explain one positive and one negative outcome of Coronado expedition

(05.04 mc) how did the roman transportation system keep the empire strong? plz

The roosevelt corollary specifically states that the united states would play what role in latin america? a. mediator c. police power b. watchdog d. buffer state

You are given the first four terms of an arithmetic sequence. why might you use a recursive formula? why might you use an explicit formula? under what conditions might a recursive formula be preferred over the explicit formula? under what conditions might an explicit formula be preferred over the recursive formula? pleasss ! sorry if it's a long question: (