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GalinKa [24]
3 years ago
7

How to solve 3 (x + 2) = 21 by dividing first​

Mathematics
1 answer:
bezimeni [28]3 years ago
8 0
Divide both sides by 3

x + 2 = 7

x = 5
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Find the entire domain on which the function f is one-to-one and non-decreasing. Write the domain in interval notation.
Vesna [10]

The inverse of the function y =  (x+7)² is f^{-1}x=\sqrt{x} - 7

From the given function f(x) = (x+7)²

Let y = f(x), the expression becomes:

y =  (x+7)²

Replace y with x

x = (y+7)²

Maker y the subject of the formula

x = (y+7)²

Take the square root of both sides

√x = √(y+7)²

√x  = y + 7

y = √x  - 7

Replace y with f^{-1}x

f^{-1}x=\sqrt{x} - 7

Hence the inverse of the function y =  (x+7)² is f^{-1}x=\sqrt{x} - 7

Learn more here: brainly.com/question/12220962

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2 years ago
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An independent variable is changed or controlled in an experiment, while a dependent variable is being tested and measured.

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3 years ago
The hole for support needs to be feet deep. It is currently inches deep. How much deeper must the hole​ be? Use pencil and paper
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Step-by-step explanation:

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The themes that are similar in the talks include:

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  • They also talked about how it's important to pay attention to those stories.
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<h3>What is a theme?</h3>

It should be noted that a theme simply means the main idea that is illustrated in a story.

In this case, the similar themes in these two talks include the fact that the authors talked about how much an impact a story can make and how it's important to pay attention to those <em>stories</em>.

Learn more about themes on:

brainly.com/question/11600913

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