Answer:c i just did the test
Step-by-step explanation:
ANSWER
![2 \times 2](https://tex.z-dn.net/?f=2%20%5Ctimes%202)
EXPLANATION
The dimensions of a matrix is of the form:
![Row \times Column](https://tex.z-dn.net/?f=Row%20%5Ctimes%20%20Column)
The dimensions of the first matrix is
![2 \times 3](https://tex.z-dn.net/?f=2%20%5Ctimes%203)
The dimensions of the second matrix is
![3 \times 2](https://tex.z-dn.net/?f=3%20%5Ctimes%202)
Since the inner products are the same,the outer products give the dimensions of the product of the two matrices.
![(2 \times 3)(3 \times 2) = 2 \times 2](https://tex.z-dn.net/?f=%282%20%5Ctimes%203%29%283%20%5Ctimes%202%29%20%3D%202%20%5Ctimes%202)
Therefore the dimensions of the product is a 2×2 matrix.
Answer:
X = 22
Step-by-step explanation:
f(x) = 3x + 1
f(7) = 3(7) + 1
= 21 + 1
= 22