Matrices cannot be multiplied. True False

2 answers:

6 0

You can multiply matrices if and only the number of the columns in the first matrix equals the number of rows in the second matrix. Otherwise the product of the two matrices is undefined

harkovskaia [24]4 years ago

5 0

You can only multiply them if the number of the first column (up and down) is the same as the 2nd row (across)

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Please help me with this question

Natali5045456 [20]

Again, In this question too you need to substitute the given variable values into the original expressions. Here, "x" is given as a value of "12" and the variable of "y" is given as as value of "2". A single variable of "x" in the numerator is given in the expression. On the denominator the variable of "y" with a value of "2" is multiplied by a numbered value of "3". So, now showing this by the help of LaTeX.

$\mathbf{Since, \: x = 12, \: y = 2}$

$\mathbf{\therefore \quad \dfrac{12}{3 \times 2}}$

$\mathbf{\therefore \quad \dfrac{12}{6}}$

$\mathbf{2}$

$\boxed{\mathbf{\underline{\therefore \quad Final \: \: Answer \: \: is: \: B) \: 2}}}$

Hope it helps.

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