AdenaBulfer
AdenaBulfer AdenaBulfer
  • 03-09-2014
  • Mathematics
contestada

A teacher is choosing 4 students from a class of 30 to represent the class at a science fair. In how many ways can the teacher choose the students?

Respuesta :

konrad509
konrad509 konrad509
  • 03-09-2014
[tex]{30 \choose 4}=\frac{30!}{4!26!}=\frac{27\cdot28\cdot29\cdot30}{2\cdot 3\cdot4}=27\cdot7\cdot29\cdot5=27405[/tex]
Answer Link

Otras preguntas

Which of these is not an example of a situation that would create inaccuracies in the sampling of an opinion poll? a. number of respondents is too small, creati
is this true or false.Minoans worshipped one main goddess called the Mother of Crete.
Ejemplos de lexicologia
Help with the question on top and explain please
list the partial products of 42×27
Can you please help me with this? 14 + 5(x + 3) - 7x
Write the value of the underlined digit four ways. 5,678.321 (the 2 is underlines)
Which of the following is NOT considered an “as-needed” Cabinet member? A. administrator of the Environmental Protection Agency B. director of the Office of
running north to south along the west coast of south america, the Andes mountain range is one of the longest and highest in the world. True or False
Simplify square root of 5 multiplied by the cube root of 5