What is the range? 8 6 8 8 10 15 10

Mathematics

1 answer:

Luba_88 [7]3 years ago

8 0

Answer:

Step-by-step explanation:

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Answers for math homework, thanks :)

QveST [7]

1) x = - 4, y = - 12; (- 4, - 12)

2) x = 34, y = 17; (34, 17)

3) x = 16, y = 7; (16, 7)

4) x = 7, y = - 4; (7, - 4)

5) x = - 4, y = 10; (- 4, 10)

6) x = 12, y = - 7; (12, - 7)

7) x = 5, y = 10; (5, 10)

8) x = 11, y = - 12; (11, - 12)

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3 years ago

Determine whether the relation is a function. find the domain and range

11Alexandr11 [23.1K]

What’s the question

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4 years ago

Is matrix multiplication comutative?

konstantin123 [22]

Answer:

Matrix multiplication is not conmutative

Step-by-step explanation:

The matrix multiplication can be performed if the number of columns of the first matrix is equal to the number of rows of the second matrix

Let A with dimension mxn and B with dimension nxp represent two matrix

The multiplication of A by B is a matrix C with dimension mxp, but the multiplication of B by A is can't be calculated because the number of columns of B is not the number of rows of A. Therefore, you can notice that is not conmutative in general.

But even if the multiplication of AB and BA is defined (For example if A and B are squared matrix of 2x2) the multiplication is not necessary conmutative.

The matrix multiplication result is a matrix which entries are given by dot product of the corresponding row of the first matrix and the corresponding column of the second matrix:

$A=\left[\begin{array}{ccc}a11&a12\\a21&a22\end{array}\right]\\B= \left[\begin{array}{ccc}b11&b12\\b21&b22\end{array}\right]\\AB = \left[\begin{array}{ccc}a11b11+a12b21&a11b12+a12b22\\a21b11+a22b21&a21b12+a22b22\end{array}\right]\\\\BA=\left[\begin{array}{ccc}b11a11+b12a21&b11a12+b12a22\\b21a11+b22ba21&b21a12+b22a22\end{array}\right]$