Evaluate the expression. $$\frac { 3 } { 2 } \left[ \begin{array} { l l l }
- 8 & - 1 & - 1
\end{array} \right] + \left[ \begin{array} { l l l }
- 9 & - 3 & 3
\end{array} \right]$$
A)[-21 $- \frac { 9 } { 2 }$ $\frac { 3 } { 2 }$ ]
B)[-17 -4 2]
C)[-3 $\frac { 3 } { 2 }$ $- \frac { 9 } { 2 }$ ]
D)[ $- \frac { 33 } { 2 }$ -3 0]
E)not possible

Question

​Evaluate the expression. ​​ $$\frac { 3 } { 2 } \left[ \begin{array} { l l l } 
- 8 & - 1 & - 1
\end{array} \right] + \left[ \begin{array} { l l l } 
- 9 & - 3 & 3
\end{array} \right]$$
A)​[-21 $- \frac { 9 } { 2 }$ $\frac { 3 } { 2 }$ ]
B)​[-17 -4 2]
C)​[-3 $\frac { 3 } { 2 }$ $- \frac { 9 } { 2 }$ ]
D)​[ $- \frac { 33 } { 2 }$ -3 0]
E)​not possible

Quizplus · Accepted Answer

The correct answer is A because:$$\frac { 3 } { 2 } \left[ \begin{array} { l l l } - 8 & - 1 & - 1\end{array} \right] + \left[ \begin{array} { l l l } - 9 & - 3 & 3\end{array} \right]$$= $$\left[ \begin{array} { l l l } - 12 & - \frac { 3 } { 2 } & - \frac { 3 } { 2 }\end{array} \right] + \left[ \begin{array} { l l l } - 9 & - 3 & 3\end{array} \right]$$= $$\left[ \begin{array} { l l l } - 21 & - \frac { 9 } { 2 } & \frac { 3 } { 2 }\end{array} \right]$$

​Evaluate the Expression A)​[-21 −92- \frac { 9 } { 2 }−29​

Evaluate the Expression A)[-21 $- \frac { 9 } { 2 }$