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Nady [450]
3 years ago
13

If X = {−1, 0, 2} and Y = {1, 2, 5}, find X ∪ Y.

Mathematics
2 answers:
Irina18 [472]3 years ago
5 0

yo sup??

as mentioned earlier XUY is simply the summation of all the unique elements of X and Y

S=XUY

={-1,0,1,2,5}

Therefore your answer is option 1 ie

1.{-1,0,1,2,5}

Hope this helps.

andrey2020 [161]3 years ago
4 0

Answer:

Step-by-step explanation:

If X = {−1, 0, 2} and Y = {1, 2, 5}

X ∪ Y is the combination of all the element in X and Y without repetition

X U Y = {-1, 0, 1, 2, 5}

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Select the correct answer.
eimsori [14]

Answer:

D

Step-by-step explanation:

Given that

f(x)=-2x – 1

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I The function f( g(x)) = x for all real x.

-2(-1/2X + 1/2) - 1

X - 1 - 1

X - 2

II. The function glAx)) = x for all real x.

- 1/2( -2X - 1 ) + 1/2

X + 1/2 + 1/2

X + 1

III. Functions fand g are inverse functions

Inverse of f(x)

Y = -2x - 1

X = - 2Y - 1

- 2Y = X + 1

Y = - 1/2X - 1/2

Therefore, none of the above answers is correct.

The correct answer is therefore D

7 0
2 years ago
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zhuklara [117]

Answer:it should be b!

Step-by-step explanation:

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4 0
2 years ago
What number has 300 tenths and 7 thousandths?
Harrizon [31]
30.007

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8 0
3 years ago
What does the absolute value of the y coordinate tell you?
DENIUS [597]

Step-by-step explanation:

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7 0
3 years ago
If
UkoKoshka [18]

Answer:

-8n + 9

Step-by-step explanation:

Given that,

A = -3n + 2

B = 5n - 7

Before solving you have to know that,

( + ) × ( + ) = ( + )

( - ) × ( - ) = ( + )

( + ) × ( - ) = ( - )

Let us solve now.

A - B

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Combine like terms

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Hope this helps you.

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