Answer:
A: 4×4
B: 4×3
C: 1×5
D: 4×1
Explanation:
You are asked for the dimensions of the matrices shown.
Matrix dimensions
The dimensions are expressed as ...
(number of rows) × (number of columns)
The numbers of rows and columns are easily counted. The dimensions are seen to be ...
A: 4×4
B: 4×3
C: 1×5
D: 4×1