nat3926 nat3926
  • 19-05-2020
  • Mathematics
contestada

An agriculture researcher wants to test the effect of nine soil additives by adding four at a time to different rows of the
same plant. How many different combinations can be tested?
756
126
63

Respuesta :

vedranazeljko
vedranazeljko vedranazeljko
  • 19-05-2020

Answer:

126

Step-by-step explanation:

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