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Hitman42 [59]
2 years ago
13

Y=4x-2y and y=x+3 estimate the solutions to the systems of equations

Mathematics
1 answer:
polet [3.4K]2 years ago
6 0

Answer:

3y=4x

y=4x/3

4x/3=x+3

x/3=3

X=9

y=12

(9,12) this is the answer

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Let Z={a,c,{a,b}}. What is |Z|?
Lina20 [59]

Z=\{a,c,\{a,b\}\}

\boxed{|Z|=3} (treat \{a,b\} as one element of Z)

The power set of Z is

\boxed{2^Z=\bigg\{\{\},\{a\},\{c\},\big\{\{a,b\}\big\},\{a,c\},\big\{a,\{a,b\}\big\},\big\{c,\{a,b\}\big\},\big\{a,c,\{a,b\}\big\}\bigg\}}

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2. a\in Z is true.

3. \{c\}\subseteq Z is true (same reason as part 1).

4. \{c\}\in Z is false because Z does not contain the set \{c\}, rather just the element c itself.

5. b\in Z is false because the element b on its own simply is not in Z. That b\in\{a,b\} does not mean b\in Z, but that b belongs to a subset of Z.

6. \{a,b\}\in Z is true.

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Step-by-step explanation:

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The sum of five consecutive positive integers is 2020. Find the largets of these numbers.
Vinil7 [7]

The largest integers of the numbers is 406.

<h3>How to find the five consecutive positive integers?</h3>

The sum of five consecutive positive integers is 2020.

Therefore,

let

the first positive integer = x

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learn more on integers here: brainly.com/question/15292688?

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