nayelividales3586 nayelividales3586
  • 20-05-2019
  • Mathematics
contestada

There are 17 people in an office with 5 different phone lines. If all the lines begin to ring at once, how many groups of 5 people can answer these lines?

Respuesta :

Luv2Teach
Luv2Teach Luv2Teach
  • 27-07-2019

Answer:

6188 different combinations of people

Step-by-step explanation:

This is a combination problem since it does not matter the order of people that answer the phones.  The combination looks like this:

₁₇C₅ = [tex]\frac{17!}{5!(17-5)!}[/tex]

This expands to

[tex]\frac{17*16*15*14*13*12!}{5*4*3*2*1(12!)}[/tex]

The 12! cancels out in the top and bottom so the remaining multiplication leaves you with

₁₇C₅ = [tex]\frac{742560}{120}[/tex]

which divides to 6188

Answer Link

Otras preguntas

Se veía mucha televisión. cierto falso se escribían muchos libros. cierto falso se viajaba mucho en tren. cierto falso se montaba a caballo. cierto falso se
The elements in group 17 of the periodic table are called halogens. all halogens have the same?
Three times the quantity two less than x is eight
Circle the place of the highlighted digit and write the value 62,468
High levels of brand​ ________, or the extent to which consumers feel they are​ "in sync" with the fox news​ brand, and engagement in fox news programs often le
Why do you think it's called the midpoint
Order the sequence in which Dante sees things in Canto I of Inferno. 1. 2. 3. 4. 5.
I tend to be skeptical in dealing with others at work
Which greek temple does not echibit the expected proportion and symmetry found in most ancient greek structures?
Help me please look at the picture and answer the question for me