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Mama L [17]
3 years ago
9

What value of r makes –6r + 2(r + 2) – 5 = -20 true?

Mathematics
1 answer:
OlgaM077 [116]3 years ago
4 0
Hello!

To find the answer we need to solve for r. First we undo the parentheses.

-6r+2r+4-5=-20

Now we combine like terms.

-4r-1=-20

We add one to both sides.

-4r=-19

Divide both sides by -4.

r=4.75

I hope this helps!
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The graph of a function f(x) passes through the following points:
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The function is f(x) = -2x² + 2 if the function f(x) passes through the following points:(0,2), (1, 0), (-1,0)

<h3>What is a function?</h3>

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

We have:

The graph of a function f(x) passes through the following points: (0,2), (1, 0), (-1,0)

Let

f(x) = ax² + bx + c

Plug x = 0, and y = 2

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Plug x = 1 and y = 0

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Plug x = -1 and y = 0

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After solving (1), (2), and (3)

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b = 0

c = 2

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Thus, the function is f(x) = -2x² + 2 if the function f(x) passes through the following points:(0,2), (1, 0), (-1,0)

Learn more about the function here:

brainly.com/question/5245372

#SPJ1

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YOu got the right answer!! good job for you! keep up the good work! plz mark me the brainliest PLZZ!!!!!

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