izziemolina
izziemolina izziemolina
  • 18-10-2018
  • Mathematics
contestada

What is the value of the expression 12C7 ?

Respuesta :

gmany
gmany gmany
  • 18-10-2018

[tex]C^7_{12}={{12}\choose{7}}=\dfrac{12!}{7!(12-7)!}=\dfrac{7!\cdot8\cdot9\cdot10\cdot11\cdot12}{7!\cdot5!}=\dfrac{8\cdot9\cdot10\cdot11\cdot12}{1\cdot2\cdot3\cdot4\cdot5}\\\\=8\cdot9\cdot11=792[/tex]

Answer Link

Otras preguntas

A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
What military strategy defeated Cornwallis at Yorktown?
what is the phenotype of a heterozygous person using T for tall and t for short
which process breaks down sugars to make atp when oxygen is present
Dennis had a piece of rope that was 2.7 m long. He cut the rope into 3 equal pieces. Was each piece of rope greater than or less than 1 m?
each year the gardners plant 7/8 of an acre with tomatoes. They sell half of what they grow at a roadside stand. What part of an acre do the gardeners use for t
please solve the following equation. x-6x=56
what is the phenotype of a heterozygous person using T for tall and t for short
which process breaks down sugars to make atp when oxygen is present
what is the phenotype of a heterozygous person using T for tall and t for short