bob293 bob293
  • 03-05-2017
  • Mathematics
contestada

A relay team of 4 swimmers is to be formed from a swim team with 20 member. How many different relay teams are possible?

Respuesta :

irspow
irspow irspow
  • 03-05-2017
When order does not matter you use what is called n choose k formula

n!/(k!(n-k)!) where n is the number of things to choose from and k is the number of choices made, in this case:

20!/(4!(20-4)!)=4845
Answer Link

Otras preguntas

How did Spanish and Portuguese exploration differ? A. The Spanish were motivated by a desire for gold. B. The Spanish were the first to reach an unknown contine
Evaluate n/6 + 2 when n=12
Question 8 (1 point) A businessman travels from work to home in 3,800 s. If the distance between the two places is 9,350 m, what is his average speed during his
Proteins, starches, fats, and oils are made from _____. A) glucose B)auxin C)cytokinin D)phloem
51906 rounded to the nearest thousand
Which is one factor that scientists use to classify orders of soil? fertility climate dryness bedrock
Can you help me fill out the graph?​
Leonidas was _____. a Spartan ruler a Macedonian ruler an Athenian general a Persian philosopher
Please help. I have provided screenshots.
Why cant the question, "What is art?" ever really be answered?