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