Question

What is the value of this matrix at az?Matrix A

Answer 1

Guven the matrix:

$\begin{bmatrix}{17.5} & {42} & {37.4} & {13} \\ {27} & {16} & {19.1} & {15} \\ {13} & {18.9} & {31} & {17.3} \\ {} & {} & {} & {}\end{bmatrix}$

Let's find the value of the matrix at a21.

We have:

$a_{\text{row,column}}=a_{2,1}$

The value at a21 is the value in the second row and first column.

Now, apply the matrix form:

$\begin{bmatrix}{a_{11}} & {a_{12}} & {a_{13}} & {a_{14}} \\ {a_{21}} & {a_{22}} & {a_{23}} & {a_{24}} \\ {a_{31}} & {a_{32}} & {a_{33}} & {a_{34}} \\ {} & {} & {} & {}\end{bmatrix}$

Therefore, the value of the matrix at a₂₁ is 27.

ANSWER:

27