Investments Josh’s and Hannah’s stock holdings are given in the following table:
BAC | GM | IBM | ORCL | |
Josh |
|
|
|
|
Hannah |
|
|
|
|
The prices (in dollars per share) of the stocks of BAC, GM, IBM, and ORCL at the close of the stock market on a certain day are $
a. Write a
b. Write a
c. Use matrix multiplication to find the total value of the stock holdings of Josh and Hannah at the market close.
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