### Home > A2C > Chapter 7 > Lesson 7.3.3 > Problem7-185

7-185.

Perform the matrix multiplication below without using a calculator.

$\left[ \begin{array} { c c c } { 2 } & { 3 } & { 7 } \\ { 5 } & { 1 } & { 0 } \end{array} \right] \left[ \begin{array} { l } { 4 } \\ { 6 } \\ { 1 } \end{array} \right]$

Multiply each row of the first matrix into each column of the second matrix.

Arrange the products into a $2$-by-$1$ matrix.