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
kaheart [24]
2 years ago
11

Let n (AUB)=32n(B)=16and n(ANB)9 find n (A)​

Mathematics
2 answers:
soldi70 [24.7K]2 years ago
5 0

Answer:

  n(A) = 25

Step-by-step explanation:

The relation between cardinality of two sets and that of their union and intersection is ...

  n(A∪B) = n(A) +n(B) -n(A∩B)

  32 = n(A) +16 -9 . . . . . use the given information

  25 = n(A) . . . . . . . . . subtract 7

Lubov Fominskaja [6]2 years ago
4 0

Answer:

32

Step-by-step explanation:

n(A∪B)=n(A)+n(B)−n(A∩B)−−−−−−−(1)

Given n(A)= ? we represent with x

n(B)= 16

n(A∪B) = 32

Substituting in equation 1 to get n(A)

32  = n(A) + 9 − 9

⇒n(A) = 32 − 0

n(A)  = 32

to confirm this we put the values into the formula below

n(A∪B)=n(A)+n(B)−n(A∩B)−−−−−−−(1)

32 =  32 + 9 - 9

You might be interested in
Brainly + 30 points!<br>Find the values of a, b, and c​
torisob [31]

Answer:

23 17 31

Step-by-step explanation:

igotitright

6 0
2 years ago
The product of 12 and y increased by 11
erastovalidia [21]
Product means to multiple 12y
increase that by 11 so +11
awnser: 12y+11
3 0
3 years ago
Valerie is ordering salads and drinks for her friends. salads cost $7 each, drinks cost $3 each, and there is a $5 delivery char
Helen [10]

Since there is a $5 delivery charge, Valerie will surely spend those money.

Also, since a salad costs $7, and Valerie buys 3 of them, she will spend 21 more dollars.

So, salads and delivery charge sum up to 21+5 = 26

This means that Valerie has 50-26 = 24 dollars left. A drink costs $3, so she can buy

\dfrac{24}{3} = 7 drinks.

5 0
3 years ago
un aliaj de platina are titlu de 0,800 si contine 1968 g de platina pura. Aflati masa aliajului. E urgent!!!!!!!!!!!!!!!!!!!1
MrRissso [65]

așa că nu sunt sigur ce vrei să spui ce este întrebarea?
7 0
3 years ago
Annette is surveying people in the city about their interests in a new shopping mall.She found that 180 people,or 37.5% of those
rusak2 [61]

Answer:

480

Step-by-step explanation:

hope this helps. mark as brainliest

4 0
3 years ago
Other questions:
  • 11. What's the area of the triangle below?8 m6 mA. 7 square metersB. 24 square metersC. 96 square metersD. 48 square meters
    14·2 answers
  • The side lengths of a triangle can be modeled by the following expressions.
    11·1 answer
  • What are three ratios equivalent to 9/2
    7·1 answer
  • Factor 7x3 - 28x2 + 3x - 12
    10·1 answer
  • Write the sum using summation notation, assuming the suggested pattern continues. 2 - 6 + 18 - 54 + ... summation of two times n
    11·2 answers
  • Kyle received the following course grades for 10​ (three-credit) courses during his freshman​ year:
    13·1 answer
  • A picture frame is 5 inches on 2 sides and x inches on the other 2. If its perimeter is 50 inches, how long is each of the other
    14·2 answers
  • What is the answer? Please help! As quick as you can!
    7·2 answers
  • There are 23 teacher in a school. How many students are there in the school, in equivalent ratio​
    9·1 answer
  • Find AUB and AnB for set A and B
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!