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iogann1982 [59]
2 years ago
7

Which equation matches the sentence?

Mathematics
1 answer:
victus00 [196]2 years ago
4 0
Hello,

1: 9n-3=21 ==>B

2: 3n+9=21 ==>A

3: 9n-3=21 ==>B

4: 3n-9=21 ==>C

I wish to have understood all those sentences.
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A six-sided fair die and an eight-sided fair die are rolled together. What is the probability of getting numbers whose sum is a
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3 years ago
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2.<br> Which of the functions below is an inverse of the quadratic function f(x) = x2 - 3 ?
mezya [45]

Answer:

the inverse of the quadratic function f(x) = x^2 - 3  is \mathbf{f^{-1}(x)=\pm \sqrt{x+3}}

Step-by-step explanation:

We need to find inverse of the quadratic function f(x) = x^2 - 3

Let

y=x^2-3

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x=y^2-3

Now, we will solve for y

Adding 3 on both sides

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Now replace y with f^{-1}(x)

f^{-1}(x)=\pm \sqrt{x+3}

So, the inverse of the quadratic function f(x) = x^2 - 3  is \mathbf{f^{-1}(x)=\pm \sqrt{x+3}}

3 0
2 years ago
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