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ruslelena [56]
3 years ago
15

Which system of equations corresponds to this matrix multiplication operation

Mathematics
2 answers:
dedylja [7]3 years ago
8 0

Answer:

Option B

Step-by-step explanation:

I just completed the test.

faltersainse [42]3 years ago
3 0

Answer:

Option (B)

Step-by-step explanation:

\begin{bmatrix}5 & 2 & 1\\ 7 & -5 & 2\\ -5 & 3 & 1\end{bmatrix}\times \begin{bmatrix}x\\ y\\ z\end{bmatrix}=\begin{bmatrix}16\\ 3\\ 12\end{bmatrix}

By applying multiplication property of the matrices,

\begin{bmatrix}(5x+2y+z)\\ (7x-5y+2z)\\(-5x+3y+z) \end{bmatrix}=\begin{bmatrix}16\\ 3\\ 12\end{bmatrix}

Therefore, system of equations formed will be,

5x + 2y + z = 16

7x - 5y + 2z = 3

-5x + 3y + z = 12

Option (B) will be the correct option.

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Answer:

the answer is option B.

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3 years ago
A sale person is given a choice of two salary plans 1weekly salary of $500 plus 4%commission of sale plan 2 is a straight commis
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Answer:

$12500

Step-by-step explanation:

Given that:

Salary plan 1:

Weekly salary of $500.

And a commission of 4%.

Salary plan 2:

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Solution:

Let the weekly sales = $x

As per question statement:

Salary as per Plan 1 = $500 + 4% of x

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Putting both the salaries to equal to find the total weekly sales.

$500 + 4% of x = 8% of x

\Rightarrow 500 = 4\%\ of\ x\\\Rightarrow 500 = \dfrac{4}{100}x\\\Rightarrow x = \$12500

Therefore, the answer is:

For the sales of $12500, the salary will be same from both the plans.

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2 years ago
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Answer:

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Step-by-step explanation:

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