1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
RoseWind [281]
3 years ago
15

An experiment involves 31 participants. From these, a group of 5 participants is to be tested under a special condition. How man

y groups of 5 participants are possible?
Mathematics
1 answer:
zzz [600]3 years ago
3 0

Answer:

169911 groups of 5 participants are possible

Step-by-step explanation:

Total no. of participants = 31

We are supposed to find no. of groups of 5 participants are possible

We will use combination over here  :

Formula : ^nC_r=\frac{n!}{r!(n-r)!}

Substitute r = 5

n = 31

So,no. of groups of 5 participants are possible =^nC_r

So,no. of groups of 5 participants are possible:

\frac{31!}{5!(31-5)!}=169911

Hence 169911 groups of 5 participants are possible

You might be interested in
How do I get the answer?​
rewona [7]
Calculator my man calculator
4 0
3 years ago
You spend two and a half hours online you spend one fifth of that time writing a blog how long do you spend writing your blog
sveta [45]

Answer:

u spend half an hour on your blog

Step-by-step explanation:

(1/5)*(5/2) = 1/2

4 0
2 years ago
Your parents decide to build a rectangular pool in your backyard. They determine that the length of the pool should be 15 feet l
damaskus [11]

Width = X

Length = X + 15

Perimeter of a Rectangle = 2W + 2L

2(X) + 2(X + 15)

2X + 2X + 30

4X + 30

Answer = 4X + 30

Hope this helps! :)

4 0
2 years ago
15 degrees in 2 hours.
alekssr [168]

Answer:

Step-by-step explanation: it’s 37 rn

8 0
3 years ago
[I need the answer asap because my teacher wants this done today!] Which y coordinate can be found on the house?
Lynna [10]

Answer:

Your answer should be 5.

Hope this helps. :-)

3 0
3 years ago
Other questions:
  • Hi plz help me with this geometry question
    8·1 answer
  • Two angles are vertical angles. what are their measures if they are also complementary
    8·1 answer
  • The dot plot shows the number of goals that the Springlane High School soccer team scored per game last season. How many games d
    14·2 answers
  • Find the distance between the points (2,10) and (-6,-7)
    13·1 answer
  • I need help and only even numbers ​
    8·1 answer
  • HELP ME PLEASE I WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!:)
    10·2 answers
  • 10=z+6 plsss solve !!!!
    6·2 answers
  • hii how are yall doing me im ok ig.... i.dk anymore also plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz help ty
    14·1 answer
  • Please anyone I need to do this know I have no time left
    10·1 answer
  • A rock is tossed over a seaside cliff. The equation y=−16x^2+50x+118 gives the height of a rock above sea level. How long until
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!