Alexandra Romar has a previous balance at Porter Pharmacy of $68.42. She had payments and credits of $18.25. The monthly finance
2 answers:
Answer:
Her new balance is $85.10.
Step-by-step explanation:
Alexandra Romar has a previous balance at Porter Pharmacy = $68.42
She had payments and credits = $18.25
Now the unpaid balance = 68.42 - 18.25 = $50.17
The monthly finance charge on unpaid balance = 1.85% × 50.17
= × 50.17
= 0.928145 ≈ $0.93
So the balance with finance charge = 50.17 + 0.93 = 51.10
She made a new purchase = $34.00
Her new balance = 51.10 + 34.00 = $85.10
Her new balance is $85.10.
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Answer:
Matrix multiplication is not conmutative
Step-by-step explanation:
The matrix multiplication can be performed if the number of columns of the first matrix is equal to the number of rows of the second matrix
Let A with dimension mxn and B with dimension nxp represent two matrix
The multiplication of A by B is a matrix C with dimension mxp, but the multiplication of B by A is can't be calculated because the number of columns of B is not the number of rows of A. Therefore, you can notice that is not conmutative in general.
But even if the multiplication of AB and BA is defined (For example if A and B are squared matrix of 2x2) the multiplication is not necessary conmutative.
The matrix multiplication result is a matrix which entries are given by dot product of the corresponding row of the first matrix and the corresponding column of the second matrix:
Notice that in general, the result is not the same. It could be the same for very specific values of the elements of each matrix.