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Tamiku [17]
3 years ago
8

Please answer the question to the best of your ability :)

Mathematics
1 answer:
Korolek [52]3 years ago
3 0

Answer:

7x^2y(2x-3y)

Step-by-step explanation:

Factor 7x^2y out of 14x^3y-21x^2y^2

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Using Cramer’s Rule, what is the value of x in the system of linear equations below? x+3y=16 3x+y=8
alexdok [17]
Cramer's rule works as follows:
x+3y=16
3x+y=8
Then 
x=Dx/D
y=Dy/D
where Dx,Dy,D are 2x2 matrices formed from of coefficients and right hand side.
D=
1 3
3 1
=1-9=-8
Dx=matrix D with first column replaced by the vector [16,8]=
16,3
8 1
=16-24
=-8

Dy=matrix D with second column replaced by the vector [16,8]=
1 16
3 8
=8-48
=-40

Therefore
x=-8/-8=1
y=--40/-8=5

Check:
x+3y=1+3(5)=16
3x+y=3(1)+5=8   ok.
4 0
3 years ago
Solve for x ~<br><img src="https://tex.z-dn.net/?f=6x%20-%2036%20%3D%2012" id="TexFormula1" title="6x - 36 = 12" alt="6x - 36 =
Shtirlitz [24]

\large \tt \:  \:  \:  \:  \:  \: ⇝ \: 6x - 36 = 12

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\large \tt \:  \:  \:  \:  \:  \: ⇝ 6x = 12 + 36

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\large \tt \:  \:  \:  \:  \:  \: ⇝ 6x = 48

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\large \tt \:  \:  \:  \:  \:  \: ⇝ \:x =   \cancel\frac{48}{6}

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\boxed{ \large \bf \color{purple}  \:  \:  \:  \:  \: ⇝ \:x = 8}

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-_- Hope Helps!¡!¡!¡!¡!

7 0
2 years ago
Read 2 more answers
Brainliest if correct
Ivan
The answer is 20x-4, hope this helps.
3 0
3 years ago
Noah's family also wants to blow up a total of 60
bezimeni [28]

Answer: They each will get 9 balloons

Step-by-step explanation: I got my answer by doing 60-24=36 then i divided it between each of the 4 family members with equals 9 per famil member!

5 0
2 years ago
it is given that ln(y+1) - ln(y) = 1+3ln(x) . express y in terms of x in a form not involving logarithms
Rina8888 [55]

ln( \frac{y + 1}{y} )  =  ln( {x}^{3} e)  \\  \frac{y + 1}{y}  =  {x}^{3} e
4 0
3 years ago
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