ineedtopass19 ineedtopass19
  • 09-06-2017
  • Mathematics
contestada

What is the number of combinations of 7 things taken 3 at a time?

A. 21
B. 35
C. 210
D. 343

Respuesta :

konrad509
konrad509 konrad509
  • 09-06-2017
[tex]C_7^3=\dfrac{7!}{3!4!}=\dfrac{5\cdot6\cdot7}{2\cdot3}=35[/tex]
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noauura
noauura noauura
  • 31-03-2022

answer: b. 35 (plato/edmentum)

Ver imagen noauura
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