42 is the answer
merry Christmas and a happy new year :)
Answer:
B)
Step-by-step explanation:
If two square matrix, with same dimensions, are inverse of one another, their product will always be the identity matrix with the same dimensions.
The matrix A and B are 2x2, so the result of the product A * B is a 2x2 identity matrix, that is represented as follows:
I = [1 0 ; 0 1]
(First line: 1 0, second line: 0 1)
So the correct option is B)
The percentage searched is 4.2%
If you multiply some value to 1.042 this means that you are adding 4.2 %
See in the expression of formula that appears just the cited figure: "1.042"