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3 years ago

PLEASE HELPPPPPPPPPPPPPPPPPPP

Mathematics

2 answers:

olya-2409 [2.1K]3 years ago

8 0

The answer is D
Your welcome

Nostrana [21]3 years ago

7 0

Answer:the answer is D

Step-by-step explanation:

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36,600

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Hope this is correct but I multiplied 30 by 1,320

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3 years ago

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3 years ago

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sasho [114]

$12 x .30= $3.60 mark up so new price was $15.60.

$15.60 x .25= $3.90 discount, so the new price with discount would be $11.70

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3 years ago

A trucking company uses matrix A , shown below, to represent the driving time in hours for 6 trucking routes. A = [ 4 6 8 ]

zepelin [54]

Each element of the matrix are multiplied by the scalar to form a matrix of

same size as the original matrix in matrix scalar multiplication.

$60 \cdot A = \left[\begin{array}{ccc}240\4&360&480\\360&480&600\end{array}\right]$

Reasons:

The matrix <em>A</em> is presented as follows;

$A = {\left[\begin{array}{ccc}4&6&8\\6&8&10\end{array}\right]}$

Using the multiplication of a matrix and a scalar, we have;

$60 \cdot A = 60 \cdot \left[\begin{array}{ccc}4&6&8\\6&8&10\end{array}\right] = \left[\begin{array}{ccc}60 \times 4&60 \times 6&60 \times 8\\60 \times 6&60 \times 8&60 \times 10\end{array}\right] = \left[\begin{array}{ccc}\mathbf{240}&\mathbf{360}&\mathbf{480}\\\mathbf{360}&\mathbf{480}&\mathbf{600}\end{array}\right]$

Therefore;

$60 \cdot A = \left[\begin{array}{ccc}240\4&360&480\\360&480&600\end{array}\right]$

Learn more about matrices here:

brainly.com/question/14296012

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3 years ago