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Mathematics

2 answers:

butalik [34]3 years ago

3 0

Answer:

V ≈ 1206.37

Step-by-step explanation:

V=πr²h

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<em>good luck, i hope this helps :)</em>

Leto [7]3 years ago

3 0

Answer:

384 $\pi$

Step-by-step explanation:

Volume of a cylinder = $\pi$ $r^{2}$ ×h

$\pi$ × $8^{2}$ ×6

=384 $\pi$

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likoan [24]

Answer:

$47.23

Step-by-step explanation:

8 0

3 years ago

Need help asap please!

Montano1993 [528]

Answer:

determinant: -15
x = 3; y = 4; z = 1

Step-by-step explanation:

The matrix of coefficients has one row corresponding to each equation. The constants in that row are the coefficients of the variables in the equation. Coefficients are listed in the same order on each row. A missing term is represented by a coefficient of 0.

<h3>coefficient matrix, determinant</h3>

The first attachment shows the coefficient matrix and its determinant.

<h3>solution</h3>

The solution to the system of equations can be found by left-multiplying the constant vector by the inverse of the coefficient matrix.

$\textbf{A$\cdot$X}=\textbf{B}\\\\\textbf{X}=\textbf{A}^{-1}\cdot\textbf{B}$