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OleMash [197]
3 years ago
14

Can someone explain how to solve this?

Mathematics
2 answers:
Fiesta28 [93]3 years ago
4 0

-3*0 is 0-4 is -4 which is less than -2

-3*3 is -9-4 is -13 which is also less than 2

Leokris [45]3 years ago
4 0

-3x-4<2

   +4   +4

----------------add 4 to both sides

-3x<6

--------divide by -3 on both sides

x<-2

im not good at math this is prolly wrong

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Is matrix multiplication comutative?
konstantin123 [22]

Answer:

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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.

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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]

Notice that in general, the result is not the same. It could be the same for very specific values of the elements of each matrix.

6 0
3 years ago
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