jaylene33002
28.02.2021 •
Mathematics
A company needs $8,000,000 in 8 years in order to expand their factory. How much should the company invest each week if the investment earns a rate of 8.9% compounded weekly?
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Ответ:
The question is missing parts. Here is the complete question.
Let M = . Find and such that , where is the identity 2x2 matrix and 0 is the zero matrix of appropriate dimension.
Step-by-step explanation: Identity matrix is a sqaure matrix that has 1's along the main diagonal and 0 everywhere else. So, a 2x2 identity matrix is:
Solving equation:
Multiplying a matrix and a scalar results in all the terms of the matrix multiplied by the scalar. You can only add matrices of the same dimensions.
So, the equation is:
And the system of equations is:
There are several methods to solve this system. One of them is to multiply the second equation to -1 and add both equations:
With , substitute in one of the equations and find :
For the equation, and