Mathematics: 3n to the 2nd power+2

3n to the 2nd power+2 - id3229292544, dda69

alangonsales6232

10.02.2022

11n

Step-by-step explanation:

We don't know the value of N, so we leave that the same.

3 to the second power, (3x3)= 9.

We have to add 2 to 9, so 9+2=11

Add your n to the end, and your answer is 11n.

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lilquongohard

27.12.2020

C. $C=\begin{bmatrix}4&2& -7\end{bmatrix}$

Step-by-step explanation:

We are given that an equation

$\begin{bmatrix}-18&3&5\end{bmatrix}-C=\begin{bmatrix}-22&1&12\end{bmatrix}$

We have to find the value of C.

Let C= $\begin{bmatrix}a&b& c\end{bmatrix}$

$\begin{bmatrix}-18&3&5\end{bmatrix}-\begin{bmatrix}a&b& c\end{bmatrix}=\begin{bmatrix}-22&1&12\end{bmatrix}$

$\begin{bmatrix}-18-a&3-b& 5-c\end{bmatrix}=\begin{bmatrix}-22&1& 12\end{bmatrix}$

When two matrix are equal then each element equals to its corresponding element.

Therefore, -18-a=-22

a=-18+22=4

3-b=1

b=3-1=2

5-c=12

c=5-12=-7

Substitute the values then we get

$C=\begin{bmatrix}4&2& -7\end{bmatrix}$

Hence, option C is true.

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