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3 years ago

Suppose U={1,2,3,4,5} is the universal ser and A={2,3}.what is A?

Mathematics

1 answer:

GaryK [48]3 years ago

6 0

Answer:

A is a subset of U.

Step-by-step explanation:

A set is usually defined as a collection of elements. In this case, U={1,2,3,4,5} is a set that contains the elements 1,2,3,4, and 5. A subset is a <u>set that has been formed by elements of another set.</u> Any selection of the elements of the set {1,2,3,4,5} can be a subset of U. For example, {1,2} is a subset of U, because it is formed by elements of U.
In this case, A={2,3} is another set, whose elements lie inside set U. Then. A is a subset of U.

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Solve for x and y. (Geometry) <br> Can you also show the steps of how u did it

Kazeer [188]

Answer:

y = 10

x = 25

Step-by-step explanation:

From the U theorem the sum of these two angles 120+2x+y = 180

same goes for the bottom part too:

2x-y+140 = 180 now add two equations up

120+2x+y + 2x-y+140 = 180 + 180 add like terms (-y will eliminate +y)

4x + 260 = 360 subtract 260 from both sides

4x = 100 divide both sides by 4

x = 25 since the sum of 2x-y+140 = 180 we can find the value of y by replacing x with 25

2*25 - y + 140 = 180

50 - y + 140 = 180 add like terms

190 - y = 180 subtract 190 from both sides

-y = -10 and y = 10

8 0

3 years ago

Does 48/144 = 5/15?.......................... I just put the dots because the question has to be 20 characters long sooooooooooo

alexdok [17]

48/144=1/3
5/15=1/3.
As a result, 48/144 does equal 5/15. Hope it help!

6 0

4 years ago

Read 2 more answers

Lisa and Krystal are planning trips to ten countries this year. They have 14 countries on their bucket list, in how many ways ca

Salsk061 [2.6K]

Answer:

1,001 ways for them to decide.

Step-by-step explanation:

The order in which they will visit the countries is not important, so we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

10 countries from a set of 14. So

$C_{14,10} = \frac{14!}{10!(14-10)!} = 1001$

1,001 ways for them to decide.

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3 years ago

What is 3 2/5 divided by 1 1/5

creativ13 [48]

Answer:

17/6 or 2 5/6

Step-by-step explanation:

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3 years ago

Which capital letters have one or more lines of symmetry? Select all that apply.

7nadin3 [17]

Answer:

Y and J

Step-by-step explanation:

They have zero lines of symmetry

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3 years ago