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otez555 [7]
3 years ago
10

Help me, please :) I need to find the value of x

Mathematics
1 answer:
irina1246 [14]3 years ago
3 0
The vale of x is 55 !!
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K = [ 14 -13 0 3 8 -1 -10 -2 5 ] find the determinant of K
spin [16.1K]

I suppose <em>K</em> is the matrix

K = \begin{bmatrix}14 & -13 & 0 \\ 3 & 8 & -1 \\ -10 & -2 & 5\end{bmatrix}

To compute det(<em>K</em>), you can use a simple cofactor expansion along the first row:

\det(K) = 14\times\det\begin{bmatrix}8 & -1 \\-2 & 5\end{bmatrix} - (-13)\times\det\begin{bmatrix}3 & -1 \\ -10 & 5\end{bmatrix} + 0\times\det\begin{bmatrix}3 & 8 \\ -10 & -2\end{bmatrix} \\\\ \det(K) = 14\times(8\times5-(-1)\times(-2)) + 13\times(3\times5-(-1)\times(-10)) + 0 \\\\ \det(K) = 14\times38 + 13\times5 = \boxed{597}

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2 years ago
How to make 3 dimensional object be 4 dimensional object
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In order to make a 3-dimensional object into a 4-dimensional object, it's important to draw the 4-dimensional shape in a way that gives the illusion of the 3-dimensional object.

<h3>How to illustrate the information?</h3>

It should be noted that shapes play an important part in geometry.

Here, to make a 3-dimensional object into a 4-dimensional object, it's important to draw the 4-dimensional shape in a way that gives the illusion of the 3-dimensional object.

Also, it should be noted that a 4D tesseract can be used to project the image.

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2 years ago
How do you turn 72.1 repeating number into a fraction?
SCORPION-xisa [38]
72 1/9

0.1 recurring of the number 1 is 1/9 of the number 
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3 years ago
Keylee writes the equation 6x+12=2(3x+6), Can you find the number of solutions this equation has without solving for x? Explain
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All Real Numbers Are The Solutions

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3 years ago
hakim wrote an equation to represent the number of meters he would run for each kilometer, k, in a long distance race.W hat is t
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K=500 because of the kilometer
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