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valentinak56 [21]
2 years ago
9

Help meee will give brainly! Find the domain of the function f(x)=5x−9 . DONT SAY I DONT KNOW

Mathematics
1 answer:
Agata [3.3K]2 years ago
7 0

Answer and Step-by-step explanation:

\frac{5}{x-9}

The domain is all real numbers <u>except</u> 9 (positive)

This is because we can't have 0 in the denominator, and when x equals 9, then the denominator is 0. Anything divided by 0 is undefined, which is why 9 (in this equation) is <u>not</u> included.

#teamtrees #WAP (Water And Plant)

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For what value of "x" will the expression -3*5*x have a positive answer"
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The value of that expression is positive whenever 'x' is negative.


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The following graph represents the quadratic parent function.<br> TRUE OR FALSE
Alex17521 [72]

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What is -2.3 - (4.5 - 3 1/2)?
Gemiola [76]
-2.3 - (4.5 - 3\frac{1}{2}) = -3.3
4 0
2 years ago
Read 2 more answers
Help me plz!!!!! I have no ideia how to do this
BlackZzzverrR [31]

Answer:

<h2>x² = -3</h2>

Step-by-step explanation:

In algebra, the goal is always to isolate the variable, so its value can be determined.

<h3>Step 1: Subtract 21</h3>

7x² = -21

<h3>Step 2: Divide by 7</h3>

x² = -3

<h3>Step 3: Check</h3>

7(-3) + 21 = 0

0 = 0 ✔

<h3>Step 4: Answer</h3>

x² = -3

I'm always happy to help :)

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