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3 years ago

Y=_x+4 x + 2y = 8 How many solutions dose this linear system have

Mathematics

1 answer:

jeyben [28]3 years ago

6 0

Answer:

X=-1, y=4

Step-by-step explanation:

$y = x + 4 \\ x + 2y = 8 \\ = = = = = = = = = = = = \\ y - x = 4 \\ x + 2y = 8$

by using eliminating property

$3y = 12 \\ y = \frac{12}{3} = 4$

by substitution

X=-1

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Find the set below using A=(5,6,9), and so on (Explanation is in picture)

anzhelika [568]

The result is: {5,6,9}

Step-by-step explanation:

Given

U = {0,1,2,......,10}

A = {5,6,9}

B = {0, 6, 7, 10}

We have to find

(A∩B)U(A∩B')

First of all,

B':

B' = U -B = {0,1,2,......,10} - {0, 6, 7, 10}

= {1,2,3,4,5,8,9}

A∩B':

A∩B' = {5,6,9} ∩ {1,2,3,4,5,8,9}

= {5,9}

A∩B:

A∩B = {5,6,9} ∩ {0, 6, 7, 10}

={6}

At the end we have to find union

(A∩B)U(A∩B') = {6} U {5,9}

(A∩B)U(A∩B') = {5,6,9}

Hence,

The result is: {5,6,9}

Keywords: Sets , Union

Learn more about sets at:

#LearnwithBrainly

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3 years ago

Put these fractions from smallest to greatest 6/5, 8/15, 1/4

valkas [14]

1/4, 8/15, 6/5
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BabaBlast [244]

Answer:

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Step-by-step explanation:

∴

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∴

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ASHA 777 [7]

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Mr. Reddick has 74 total yards of red and blue felt to distribute to students in his art class. Each of his 20 students gets 2.

Mkey [24]

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Step-by-step explanation:

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