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3 years ago

if A and B are overlapping subset of a universal set U,write the relation between n(U), n(A U B) and (A U B) compliments

Mathematics

1 answer:

Ilya [14]3 years ago

4 0

Answer:

n(U) = n(AUB) + n(AUB)'

Step-by-step explanation:

The cardinality of the universal set will be to add the cardinalities of both the union of A and B i.e (A U B) and and the compliments of A and B i.e n(AUB)'

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What are the first two steps in solving the radical equation below?

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2 years ago

Carrie has 2 meters of ribbon. She cuts off pieces of ribbon that are 5/10 meter, 1/10 meter, and 7/10 meter. How long is the re

vekshin1

Answer:

$\frac{7}{10}$

Step-by-step explanation:

Carrie has 2 meters of ribbon. She cuts off pieces of ribbon that are 5/10 meter, 1/10 meter, and 7/10 meter

Lets add all the cut of pieces and subtract it from 2 meters

$\frac{5}{10} +\frac{1}{10}+\frac{7}{10}=\frac{13}{10}$

Now we subtract 13/10 from 2 meters

$2 - \frac{13}{10}$

To subtract , make the denominator same

$\frac{2*10}{1*10} - \frac{13}{10}=\frac{20}{10} - \frac{13}{10}=\frac{7}{10}$

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3 years ago

An economy package of cups has 460 green cups. If the green cups are 20% of the total package, how many cups are in the package?

Oksi-84 [34.3K]

2300 cups because if 460 is 20%, multiply the 460 x 5 to get 100%

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2 years ago

Is my solution correct?

nlexa [21]

Hello there!

Yes, your solution is correct! A way to check it is replacing the value you found for x into x in the equation.

3(2-x) = 7 - 4x ⇒ 3(2-1) = 7 - 4(1)

And now solve 3(2-1) = 7 - 4(1).

3(1) = 7 - 4(1)

3 = 7 - 4

3 = 3

Since it is a true statement that 3 is equal to 3, it means your solution of x = 1 is correct. Good job! :)

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3 years ago

Read 2 more answers

What is 245 divided by 2?

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Answer:

122.5

Step-by-step explanation:

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3 years ago

Read 2 more answers

if A and B are overlapping subset of a universal set U,write the relation between n(U), n(A U B) and (A U B) compliments​

if A and B are overlapping subset of a universal set U,write the relation between n(U), n(A U B) and (A U B) compliments