Help me in my hw landslide can be prevented by terrace farming why​

Riko will be behind Yuto when 0 ≤ t < 52.5.

This means for the first 52.5 minutes, Riko will be behind Yuto as he started late. At 52.5th minute Riko will cross Yuto and move ahead because average speed of Yuto is larger than average speed of Riko.

So for first 52.5 minutes, Yuto takes the lead and for the remaining time Riko takes the lead on the path.

t represents time in the given scenario. Time cannot have negative values, it can only be zero or have some positive value. Therefore, t cannot be less than 0. When t is equal to 0 it indicates the start of jo

Explanation:

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.