Answer:....
What?
Step-by-step explanation:
The answer is: [A]: " 20a − 5b − 9 " .
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Explanation:
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(12a <span>+ 7b) + (−6a − 9) + (14a − 12b) =
12a </span><span>+ 7b + 1(−6a − 9) + 1(14a − 12b) =
</span>
12a + 7b + (1*-6a) + (1*-9) + (1*14a) + (1* -12b) =
12a + 7b − 6a − 9 + 14a − 12b = ?
Combine the "like terms:
12a − 6a + 14a = 20a ;
7b − 12b = - 5b ;
and then we have "-9" ;
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So, write as: " 20a − 5b − 9 " ; which is: Answer choice: [A].
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Answer:
<h3>The picture in the attached figure.</h3><h3> </h3><h3>we know that </h3><h3> </h3><h3>Area of the triangle is equal to </h3><h3 /><h3> A= ( b×h ) /2</h3><h3> </h3><h3>in this problem </h3>
<h3> A=47 in²</h3><h3> </h3><h3> b=x</h3><h3> </h3><h3> h=x</h3>
<h3>so </h3><h3> 47 = X * X / 2</h3>
<h3> x² = 94 </h3><h3>

</h3>


<h3> </h3><h2> Therefore</h2>
<h3> the answer is</h3>

<h3> And please follow me...</h3>
True, the purpose of the vertical line test is to determine whether a relation is a function.