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
Diano4ka-milaya [45]
3 years ago
15

How many subsets of five elements each can be made from a set of seven elements?

Mathematics
1 answer:
Alina [70]3 years ago
8 0
<span>When creating a subset of 5 elements from 7 elements, order should not matter. Therefore, we use the combination formula over the permutation formula. The combination formula given n elements total and r elements used is n! / [r!*(n-r)!]. Substituting 7 for n and 5 for r, we get: 7! / (5!*2!) = 7*6 / 2 = 21 21 subsets can be created</span>
You might be interested in
Six people are sitting around a circular table, and each person has either blue eyes or green eyes. Let x be the number of peopl
Slav-nsk [51]

Answer:

10

Step-by-step explanation:

Given that:

Six people are sitting around a circular table

and each person has either blue or green eyes.

So; we are told to represent x as the number of people sitting next to at least one blue-eyed person

and y be the number of people sitting next to at least one green-eyed person.

The objective is to find how many possible ordered pairs (x,y) are there?

The ordered pairs (x,y) i.e ( blue , green)   are : ( (6, 0), (6, 2), (6, 4), (5, 3), (5, 5), (3, 3) ).

The above proves the ordered pairs for  at least as blue as green.

Now; to determine the ordered pairs for as many green as blue, we will require to go the opposite direction by reversing the values; so we can arrive at a new values of  10 possible outcomes which are as follows:

(6, 0), (6, 2), (6, 4), (5, 3), (5, 5), (3, 3), (3, 5), (4, 6), (2, 6), (0, 6)

3 0
3 years ago
What is the distance???
maxonik [38]

Answer:

5

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
3 Dakota has a mirror in the shape of a trapezoid. She
borishaifa [10]

The Renaissance set the principle that "Man is the measure of all things". As a consequence, there was a growing interest in the development of humankind in all fields. In order for this to happen, improvements in education and intelligence were crucial. As a product of this growing importance of education, that Humanism was founded. Humanism is known as a stance that emphasizes the value of all human beings.

8 0
4 years ago
PLEASE HELP!!!<br><br> What is the solution set for 10 - 4x &lt; -22?
Tom [10]

Answer:

x > 8

Step-by-step explanation:

Solve for x to find the solution.

10 - 4x < -22

Subtract 10 from both sides.

-4x < -32

Divide both sides by -4. Flip the sign when dividing by negative.

x > 8.

7 0
3 years ago
Read 2 more answers
Here’s the pic help please answer I’ll give brainliest !! It’s for a test
Fudgin [204]
A= -2

b=0

hope this helps
8 0
3 years ago
Other questions:
  • 98 Points And Brainliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!A poll asked 15 men in two age groups, 30 and younger and older than 3
    5·1 answer
  • What is the average rate of change for h(x)=x^2+x-6
    14·1 answer
  • Which rectangular prism has a surface area of 56 square units? [Note: Art is not drawn to scale.] A rectangular prism with a len
    13·2 answers
  • A pair of corresponding sides of two similar pentagons have lengths of 14 cm and 21 cm. What is the ratio of the areas of the tw
    6·1 answer
  • Solve the equation: 2 * x-3 = 25, x =? (digit answer):
    13·1 answer
  • H o w d o t h i s p l e a s e h a l p m e h
    6·2 answers
  • PLS HELP
    7·1 answer
  • Ayone amos right now gonna be answering : yungbreezyf2
    9·1 answer
  • Chapter 1 <br>This story starts with Percy giving advice to the reader. Why is this part important?
    6·1 answer
  • 3) Solve for angle x. Round to the nearest whole number. Write answer in format x = ____ degrees
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!