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Alex73 [517]
2 years ago
6

S is a subset within a universal set, U. If S = {x, y, 4, 9, ?), which could describe U? U = {keys on a keyboard}

Mathematics
2 answers:
ki77a [65]2 years ago
8 0

Answer:

U = {keys on a keyboard}

Step-by-step explanation:

This is because x, y, 4, 9, ? are all keys located on a keyboard.

Katyanochek1 [597]2 years ago
4 0
Since U is a universal set where S is its subset, then set U should consist of all the letters, numbers and punctuation mark in a keyboard. In other words, universal set U consists of the following elements:
U = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
U = (x| x comprised of all the letters in the alphabet fro a to z)
U = (!,.,,,?,!:,;,",',-)
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Answer:

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Step-by-step explanation:

given \left | x+3 \right |-2=0

\left | x+3 \right |=2

x+3=+2

x=-1,     also,  x+3=-2

                    x=-2-3=-5

hence x=-1 , -5 answer

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3 years ago
Is the line of best fit y=-2.9114x+40.7464 or y=-2.9114x+46.5693 ? Please help i’m in a rush!
Colt1911 [192]

Answer:

line of best fit: y = -2.9114x + 46.569

Step-by-step explanation:

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2 years ago
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3 years ago
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If the original price was $58 and the new price is $66 what is the percent change
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Which expression does not factor?<br><br> m3 + 1<br> m3 – 1<br><br> m2 + 1<br><br> m2 – 1
Luda [366]

Answer:

m^2 +1

Explanation:

All the other expressions can be factorized. Let's see why:

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In this case, a=m and b=1, so we can factorize as

m^3+1=(m+1)(m^2-m+1)

2) m^3-1

This is the difference between two cubes, and this can be factorized as follows:

a^3-b^3=(a-b)(a^2+ab+b^2)

In this case, a=m and b=1, so we can factorize as

m^3-1=(m-1)(m^2+m+1)

3) m^2-1

This is the difference between two square numbers, and it can be factorized as follows

(a^2-b^2)=(a+b)(a-b)

In this case, a=m and b=1, so we can factorize as

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3 years ago
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