mackiejade26 mackiejade26
  • 14-08-2019
  • Mathematics
contestada

How many ways can an IRS auditor select 5 of 12 tax returns for an audit?

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 14-08-2019

Answer:

  792

Step-by-step explanation:

The number of ways that k things can be chosen from a collection of n things is given by ...

  nCk = n!/(k!(n-k)!)

Here, we want the number of ways 5 items can be chosen from 12. That is ...

  12C5 = 12!/(5!·7!) = 12·11·10·9·8/(5·4·3·2·1) = 11·9·8

  12C5 = 792

There are 792 ways 5 returns can be chosen from 12.

Answer Link

Otras preguntas

60.3 centimeters into milimeters
neat and labelled diagram of blood flim​
What number gives a result of − 5 when 9 is subtracted from the quotient of the number and 4 ?
While completing a practice test online, Jalisa answered 14 out of 20 questions correctly. If the ratio of correct to total questions remains constant, how many
HELPPPPPPPPPP PLEASEEEEEEEE!!!!
2. If a costing Rs. 45,000 is sold at a discount of 20%. Write the formula to find discount percent. Discount MP (b) Find the discount [1] [Ans: Rs. 9,000.(c) I
Write the balanced equation and determine the information requested. Don't worry about state symbols in these reactions. The number of moles and the mass (in mi
convert the following measurement.[tex]3 \: yards \: inhees[/tex]3 yards. inchees​
How do variations in temperature affect the altimeter?
Under the land lottery system, which three groups were given a chance to participate?