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kogti [31]
3 years ago
15

Solve using matrix inverse method 3x 2y 3x-2y+3z=8 , 2x+ y - z = 1, 4x-3y + 2z =4

Mathematics
1 answer:
emmainna [20.7K]3 years ago
7 0

Step-by-step explanation:

A=⎣⎢⎢⎡324−21−33−12⎦⎥⎥⎤,x=⎣⎢⎢⎡xyz⎦⎥⎥⎤,B=⎣⎢⎢⎡814⎦⎥⎥⎤

∣A∣=⎣⎢⎢⎡324−21−33−12⎦⎥⎥⎤

=3[1−3−12]−1(−2)[24−12]+3[241−3]⇒3(2−3)−2(4+4)+

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Answer:

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Which transformation gives the same result as a rotation of 180° around the origin
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3 years ago
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Instructions:Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Th
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Given that t<span>he native bird population in a city is decreasing at a rate of 10% per year due to industrialization of the area by humans. The population of native birds was 14,000 before the decrease began.

Thus f(1) = 14,000 and

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Thus,

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6 0
3 years ago
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MArishka [77]

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3 0
2 years ago
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Solve.<br> 13 - 2x1 = 9<br> A. X=-3<br> B. X=6<br> C. X=-3, x = 6<br> D. x = 3, x = 6
Vlada [557]

\huge\text{Hey there!}

\large\boxed{\mathsf{13 - 2x^1 = 9}}\\\\\large\boxed{\mathsf{\rightarrow 13 - 2x = 9}}\\\\\large\boxed{\rightarrow \mathsf{-2x + 13 = 9}}\\\\\large\boxed{\textbf{SUBTRACT 13 to BOTH SIDES}}\\\\\large\boxed{\mathsf{-2x + 13 - 13 = 9 - 13}}\\\\\large\boxed{\textbf{CANCEL out: 13 - 13 because it gives you 0}}\\\large\boxed{\textbf{KEEP: 9 - 13 because it help solve for the x-value}}\\\\\large\boxed{\textbf{NEW EQUATION: -2x = 9 - 13}}\\\large\boxed{\textbf{SIMPLIFY IT!}}\\\\\large\boxed{\mathsf{-2x = -4}}

\large\boxed{\textbf{DIVIDE -2 to BOTH SDES}}\\\\\large\boxed{\mathsf{\dfrac{-2x}{-2} = \dfrac{-4}{-2}}}\\\\\large\boxed{\textbf{CANCEL out: } \mathbf{\dfrac{-2}{-2}} \textbf{ because it gives you 1}}\\\\\large\boxed{\textbf{KEEP: } \bf \dfrac{-4}{-2} \textbf{ because it gives you the value of x}}\\\\\large\boxed{\textbf{NEW EQUATION: } \mathbf{x= \dfrac{-4}{-2}}}\\\\\boxed{\large\textsf{SIMPLIFY IT!}}\\\\\large\boxed{\textbf{x = 2}}

\huge\text{Therefore, your answer is: \boxed{\mathsf{x = 2}}}\huge\checkmark

\large\textbf{Good luck on your assignment \& enjoy your day!}\\\\\frak{Amphitrite1040:)}

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