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Anon25 [30]
3 years ago
13

Helpp plzzzz

Mathematics
1 answer:
jasenka [17]3 years ago
6 0

Answer:

D. 3x^2 + 3/2 x - 9

Step-by-step explanation:

(f+g)(x) = f(x) + g(x)

... = ((1/2)x -3) + (3x² +x -6) . . . . . substitute for f(x) and g(x)

... = 3x² +x(1/2 + 1) + (-3 -6) . . . . . combine like terms

... = 3x² +(3/2)x -9 . . . . . matches selection D

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WARRIOR [948]

By using the given information about the inverse relation, we will get:

  • Equation: y = -28/x
  • Solution: y = -14

<h3>How to get the relation between x and y?</h3>

First, we know that y varies indirectly with x, then we can write the relation as:

y = k/x.

Where k is a constant.

Then, we know that when y = 7, we have x = -4.

Replacing these we can find the value of k:

7 = k/(-4)

7*(-4) = k = -28

Then the relation between x and y is:

y = -28/x.

Now, we want to find the value of y when x = 2, then we just replace that in the above equation:

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So we have:

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If you want to learn more about indirect variation:

brainly.com/question/6499629

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