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andreev551 [17]
3 years ago
11

Someone please help me

Mathematics
1 answer:
kkurt [141]3 years ago
5 0

I think its G  dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddddddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddeddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddddddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddddddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddddddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddddddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddddddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddddddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddddddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddddddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddedddedededededddddddddddddddd dddeddded

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Which ones are correct?
Nadusha1986 [10]

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3 years ago
Please solve the problem ​
jek_recluse [69]

Treat the matrices on the right side of each equation like you would a constant.

Let 2<em>X</em> + <em>Y</em> = <em>A</em> and 3<em>X</em> - 4<em>Y</em> = <em>B</em>.

Then you can eliminate <em>Y</em> by taking the sum

4<em>A</em> + <em>B</em> = 4 (2<em>X</em> + <em>Y</em>) + (3<em>X</em> - 4<em>Y</em>) = 11<em>X</em>

==>   <em>X</em> = (4<em>A</em> + <em>B</em>)/11

Similarly, you can eliminate <em>X</em> by using

-3<em>A</em> + 2<em>B</em> = -3 (2<em>X</em> + <em>Y</em>) + 2 (3<em>X</em> - 4<em>Y</em>) = -11<em>Y</em>

==>   <em>Y</em> = (3<em>A</em> - 2<em>B</em>)/11

It follows that

X=\dfrac4{11}\begin{bmatrix}12&-3\\10&22\end{bmatrix}+\dfrac1{11}\begin{bmatrix}7&-10\\-7&11\end{bmatrix} \\\\ X=\dfrac1{11}\left(4\begin{bmatrix}12&-3\\10&22\end{bmatrix}+\begin{bmatrix}7&-10\\-7&11\end{bmatrix}\right) \\\\ X=\dfrac1{11}\left(\begin{bmatrix}48&-12\\40&88\end{bmatrix}+\begin{bmatrix}7&-10\\-7&11\end{bmatrix}\right) \\\\ X=\dfrac1{11}\begin{bmatrix}55&-22\\33&99\end{bmatrix} \\\\ X=\begin{bmatrix}5&-2\\3&9\end{bmatrix}

Similarly, you would find

Y=\begin{bmatrix}2&1\\4&4\end{bmatrix}

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P=\begin{bmatrix}2&-3\\0&1\end{bmatrix} \text{ and } Q=\begin{bmatrix}1&2\\3&-1\end{bmatrix}

3 0
3 years ago
A certain forest covers an area of
iVinArrow [24]

Answer:

2598 square kilometers

Step-by-step explanation:

Hello

Step 1

year one

using a rule of three is possible to find how much is 8.75 od 4500 km2

Let

if

4500 km2  ⇒ 100$

x?km2         ⇒8.75

do the relation and isolate x

4500:100\\x:8.75\\\frac{4500}{100}=\frac{x}{8.75}\\x=\frac{4500*8.75}{100} \\x=393.75\\

at the end of the year one, the area will be

4500-393.75=4106.25

this will be the initial area for the year 2.

Step 2

repite the step 1 with area initial =4106.25 km2

4106.25 km2  ⇒ 100$

x?km2         ⇒8.75

do the relation and isolate x

4106.25:100\\x:8.75\\\frac{4106.25}{100}=\frac{x}{8.75}\\x=\frac{4106.25*8.75}{100} \\x=359.29\\

at the end of the year 2, the area will be

4106-359.29=3746.70

this will be the initial area for the year 3.

Step 3

repite the step 1 with area initial =4106.25 km2

3746.70 km2  ⇒ 100$

x?km2         ⇒8.75

do the relation and isolate x

3746.70:100\\x:8.75\\\frac{3746.70}{100}=\frac{x}{8.75}\\x=\frac{3746.7*8.75}{100} \\x=327.83\\

at the end of the year 3, the area will be

3746.70-327.83=3419.09

this will be the initial area for the year  4.

Step 4

year four

repite the step 1 with area initial =3419.09 km2

3419.09 km2  ⇒ 100$

x?km2         ⇒8.75

do the relation and isolate x

3419.09:100\\x:8.75\\\frac{3419.09}{100}=\frac{x}{8.75}\\x=\frac{3419.09*8.75}{100} \\x=299.17\\

at the end of the year 4, the area will be

3419.09-299.173=3119.82

this will be the initial area for the year  5.

Step 5

year five

repite the step 1 with area initial =3119.82 km2

3119.82 km2  ⇒ 100$

x?km2         ⇒8.75

do the relation and isolate x

3119.82:100\\x:8.75\\\frac{3119.82}{100}=\frac{x}{8.75}\\x=\frac{3119.82*8.75}{100} \\x=272.99\\

at the end of the year 5, the area will be

3119.82-272.99=2846.92

this will be the initial area for the year  6.

Step 6

year six

repite the step 1 with area initial =2846.92km2

2846.92 km2  ⇒ 100$

x?km2         ⇒8.75

do the relation and isolate x

2846.92:100\\x:8.75\\\frac{2846.92}{100}=\frac{x}{8.75}\\x=\frac{2846.92*8.75}{100} \\x=249.10\\

at the end of the year six, the area will be

2846.92-249.10=2597.82 square kilometers

Have a great day.

8 0
3 years ago
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