帮忙作一道英文的矩阵的题,
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帮忙作一道英文的矩阵的题,
(Factory output and inventory )
A company produces two products,240 watt light globes and 40 watt light globes in two factories.Matrix A describes
output (measured in thousands) for a month from each factory,with row 1 representing the number of 240 watt light
globes and row 2 represents the number of 40 watt light globes.Matrix B gives the output for the second month,and
matrix C gives the combined output for the third and fourth month .
A =
100 65
72 90
B =
60 85
44 124
C =
120 185
100 180
If column 1 in each matrix represents the output from factory 1 and column 2 represents the output from factory 2.
(i) Find a matrix that describes the output for the first 2 week.(ii) Find a matrix that describes the combined
output for the first 4 weeks.
(iii) If matrix D
D =
80 50
56 84
describes the sales made during the first week,find the matrix that describes that the number of units that are added
to inventories at each factory in the first week.(iv) *(question optional (not assessed)) If sales during week 2 are also
described by D,describe the change in inventories at each factory at the end of two weeks.Describe what happened at
factory 1.
(Factory output and inventory )
A company produces two products,240 watt light globes and 40 watt light globes in two factories.Matrix A describes
output (measured in thousands) for a month from each factory,with row 1 representing the number of 240 watt light
globes and row 2 represents the number of 40 watt light globes.Matrix B gives the output for the second month,and
matrix C gives the combined output for the third and fourth month .
A =
100 65
72 90
B =
60 85
44 124
C =
120 185
100 180
If column 1 in each matrix represents the output from factory 1 and column 2 represents the output from factory 2.
(i) Find a matrix that describes the output for the first 2 week.(ii) Find a matrix that describes the combined
output for the first 4 weeks.
(iii) If matrix D
D =
80 50
56 84
describes the sales made during the first week,find the matrix that describes that the number of units that are added
to inventories at each factory in the first week.(iv) *(question optional (not assessed)) If sales during week 2 are also
described by D,describe the change in inventories at each factory at the end of two weeks.Describe what happened at
factory 1.
![帮忙作一道英文的矩阵的题,](/uploads/image/z/17798711-23-1.jpg?t=%E5%B8%AE%E5%BF%99%E4%BD%9C%E4%B8%80%E9%81%93%E8%8B%B1%E6%96%87%E7%9A%84%E7%9F%A9%E9%98%B5%E7%9A%84%E9%A2%98%2C)
以30日为1个月的话
第一题答案是 46 30
33 42
第二题 160 144
...抓狂,我不想做下去了,等高手吧
第一题答案是 46 30
33 42
第二题 160 144
...抓狂,我不想做下去了,等高手吧