Use matrices A, B, C and D to find the following.


Problem 1 :
A + B
Problem 2 :
D  B
Problem 3 :
4C
Problem 4 :
6B  2A
Problem 5 :
3C  4A + B
Problem 6 :
C + 1/3D
Problem 7 :
Use the following information. The Cookie Cutter Bakery records each type of cookie sold at three of their branch stores. Two days of sales are shown in the spreadsheets below.
a. Write a matrix for each day's sales.
b. Find the sum of the two day's sales expressed as a matrix.
c. Find the difference in cookie sales from Friday to Saturday expressed as a matrix.
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM