Answer:
Matrix A is not invertible.
Step-by-step explanation:
Invertible matrix are those matrix which are square matrix or non singular matrix.
For any matrix to be invertible, matrix should be non singular i.e. det(x)
0.
But for the question given above we cannot find determinant of matrix A as it is not square matrix. so inverse of given matrix does not exist. so it is not possible to have non trival solutions.
2×$15.99=31.98
+ 4×$11.99=47.96
---------------
$79.94
:. $79.94 is the cost.
Answer: $14.93
Step-by-step explanation:
First, lets remove the shipping price: 51.65 - 3.50 = 48.15
Next, lets find the sales tax of the shirts: 48.15 x 0.07 = 3.37
Then, subtract that from the shirt price: 48.15 - 3.37 = 44.78
Finally, divide 44.78 by 3: 44.78 / 3 = 14.93!
Answer:
Whats the question so that I can help?
Step-by-step explanation:
Answer:
4
Step-by-step explanation: