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barxatty [35]
2 years ago
12

Please help me ASAP help

Mathematics
1 answer:
disa [49]2 years ago
8 0

Answer:

62 in^2

Step-by-step explanation:

===========================================

Formulas:

Area of a rectangle/square:

A=lw

===========================================

<u>Big Rectangles (2):</u>

7*3=21

Multiply by 2

21*2= 42 in

<u>Long rectangles (2)</u>

7*1=7

Multiply by 2

7*2= 14 in

<u>Short rectangles (2):</u>

3*1=3

Multiply by 2

3*2= 6 in

<u>Total: </u>

Add.

42+14+6= 62 in2

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Using the bar graph, approximately what percent of the total population shown in the table is Cherokee?
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Answer:

about 35%

Step-by-step explanation

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5 0
3 years ago
How do ypu slove dis? <br>y^2(q-4) - c(q - 4)
Annette [7]
<span><span> y2(q-4)-c(q-4)</span> </span>Final result :<span> (q - 4) • (y2 - c) </span>

Step by step solution :<span>Step  1  :</span><span>Equation at the end of step  1  :</span><span><span> ((y2) • (q - 4)) - c • (q - 4) </span><span> Step  2  :</span></span><span>Equation at the end of step  2  :</span><span> y2 • (q - 4) - c • (q - 4) </span><span>Step  3  :</span>Pulling out like terms :

<span> 3.1 </span>     Pull out     q-4 

After pulling out, we are left with : 
      (q-4) • (<span> y2</span>  *  1 +( c  *  (-1) ))

Trying to factor as a Difference of Squares :

<span> 3.2 </span>     Factoring: <span> y2-c</span> 

Theory : A difference of two perfect squares, <span> A2 - B2  </span>can be factored into <span> (A+B) • (A-B)

</span>Proof :<span>  (A+B) • (A-B) =
         A2 - AB + BA - B2 =
         A2 <span>- AB + AB </span>- B2 = 
        <span> A2 - B2</span>

</span>Note : <span> <span>AB = BA </span></span>is the commutative property of multiplication. 

Note : <span> <span>- AB + AB </span></span>equals zero and is therefore eliminated from the expression.

Check : <span> y2  </span>is the square of <span> y1 </span>

Check :<span> <span> c1  </span> is not a square !! 
</span>Ruling : Binomial can not be factored as the difference of two perfect squares

Final result :<span> (q - 4) • (y2 - c) </span><span>
</span>
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Step-by-step explanation:

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Step-by-step explanation:

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