The horse racing record for a 1.50 mi track is shared by two horses: fiddle isle, who ran the race in 143s on march 21 1970

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: (