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Marianna [84]
3 years ago
15

Solve for x and y: x+y=5 x−y=a

Mathematics
1 answer:
9966 [12]3 years ago
5 0

Answer:

x=5/2 + a/2,  y= 5/2 - a/2

Step-by-step explanation:

We can solve this system using addition of the equations

x+y=5

<u>x-y=a</u>

2x  =(5+a)

x=(5+a)/2= 5/2 +a/2

x=5/2 +a/2

x-y=a

y = x - a , x=5/2 + a/2

y= 5/2 + a/2-a

y= 5/2 - a/2

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Given that h(x)=x³-2, evaluate h(4)<br><br> pls help me!
ahrayia [7]

Hello and Good Morning/Afternoon:

<u>Let's take this problem step-by-step</u>:

<u>The problem want's to find h(4)</u>

  \hookrightarrow \text{4 in this case is the x's value}\\

       \hookrightarrow\text{This means that we must plug in x into x's position in h(x)'s equation}

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<u></u>

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#LearnwithBrainly

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2 years ago
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FromTheMoon [43]

Answer:

AB = \sqrt{34}

Step-by-step explanation:

Calculate the distance d using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = A(- 2,  1) and (x₂, y₂ ) = B(3, 4)

d = \sqrt{(3+2)^2+(4-1)^2}

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Answer:

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Step-by-step explanation:

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