abdulq10 abdulq10
  • 06-06-2020
  • Mathematics
contestada

how many ways can a president, vis-president and treasurer be selected from a group of 15 students?

Respuesta :

maxwellekoh
maxwellekoh maxwellekoh
  • 06-06-2020

Answer:

455ways

Step-by-step explanation:

This is expressed as 15 C 3 ( C- combination)

The concept of combination is used when we talk about selection.

Now we are selecting 3 from a sample of 15

15 C 3 = 15! / (15-3)! 3! = 15 ×14×13×12!/12!×3×2

= 5 × 7 × 13 = 455ways

Answer Link

Otras preguntas

what did the poor man wish for
A large pharmaceutical company is trying to determine whether a drug aptly named Recall-Pro can increase your short-term memory capacity. The company prepares a
Read this excerpt from "Homework." I'd wash the Amazon river and clean the oily Carib & Gulf of Mexico, Rub that smog off the North Pole, wipe up all the
Jacob worked 21 hours at a rate of $8.75 per hour. Which line in the table will help him calculate his income tax for this week? A. line 1 B. line 2 C. line 3
Find each product or quotient . Use significant digits . ( 1,370m divided by 31.7 s )
find the zeros of this polynomial function? f(x)=6x^2 + 4x + 8
how much sugar should a diabetic have
Which of the following statements about a sentence's subject is correct?         A. The subject has to be placed before the verb.   B. The subject is unnecessar
are you sure that that is right?
A group of adults and students went on a class trip to Washington, DC. The number of male students was 1 more than 7 times the number of adults. The number of f