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QUESTION 50
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QUESTION 1
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QUESTION 2
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QUESTION 3
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QUESTION 4
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QUESTION 5
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QUESTION 6
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QUESTION 7
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QUESTION 8
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QUESTION 9
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QUESTION 10
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QUESTION 1
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QUESTION 2
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QUESTION 3
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QUESTION 4
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QUESTION 5
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QUESTION 6
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QUESTION 7
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QUESTION 8
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QUESTION 9
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QUESTION 10
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Explanation & Answer
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QUESTION 1
Which of the following is the correct matrix representation of the children movie ticket sales for all
three days?
Ticket Sales for ThursdayTicket Sales for FridayTicket Sales for Saturday
Children
Adults
Children
Adults
Children
Adults
Regular
Matinee
257
183
355
402
398
423
135
168
242
311
376
386
Answer:
The information of The children movie ticket sales for all three day could be place into a matrix. To
organize the data we would choose to list one category as the rows and the other category as the
columns. In this case this matrix is arranged so that the rows are comprised ticket sales for three
day and the columns are represented by Regular and Matinee. Then we have the final answer is :
Final answ er
2 points
QUESTION 2
1. What is the correct matrix for the inventory of flats in sizes 10 and 12.
Boots
Flats
Sneakers
Blue GrayBlue GrayBlue Gray
Shoes Size 10 3
5 9
10 1
4
Shoes Size 12 2
0 2
7 4
0
Answer:
The information of inventory of flats could br place into a matrix. To organize the data we would
choose to list one category as the rows and the other category as the columns. In this case this
matrix is arranged so that the rows are comprised Flats and the columns are represented by Shoes
Size . Then we have the final answer is :
Final answ er
2 points
QUESTION 3
1. Evaluate
Answer:
We notice the rules for Matrix addition: The matrices are assumed to all have the same dimensions
The first matrix has two rows and three columns (2x3). The second matrix have three rows and two
columns (3x2) and we can say the two matrices are haven’t the same dimensions. That mean the
sum of the two matrices are not possible
Final answ er
NOT POSSIBLE
2 points
QUESTION 4
1. If B =
find -3B.
Answer:
The term scalar multiplication refers to the product of a real number and a matrix. In scalar
multiplication, each entry in the matrix is multiplied by the given scalar
So that -3B=
Final answ er
2 points
QUESTION 5
1. Evaluate
Answer:
We notice the rules for Matrix addition: The matrices are assumed to all have the same dimensions
The first matrix has one rows and three columns (1x3). The second matrix have three rows and one
columns (3x1) and we can say the two matrices are haven’t the same dimensions. That mean the
sum of the two matrices are not possible
Final answ er
NOT POSSIBLE
2 points
QUESTION 6
1. Matrix A has dimensions 5 x 4. Matrix B has dimensions 4 x 3. These two matrices can be
multiplied.
Answer:
In order for matrix multiplication to be defined, the number of columns in the first matrix must be
equal to the number of rows in the second matrix
The number of columns in the first matrix equal 4, the number of rows in the second matrix equal
4 so that these two matrices can be multiplied
Final answ er
TRUE
FALSE
2 points
QUESTION 7
1. Matrix A has dimensions 3 x 2. Matrix B has dimensions 3 x 2. A x B will have dimensions
3 x 2.
Answer:
In order for matrix multiplication to be defined, the number of columns in the first matrix must be
equal to the number of rows in the second matrix
The number of columns in the first matrix equal 2, the number of rows in the second matrix equal
3 so that these two matrices can be multiplied. That mean A x B will have dimensions 3 x 2 is False
Final answ er
TRUE
FALSE
2 points
QUESTION 8
1. Evaluate
Answer:
To multiply two matrices. We multiply and add the elements as follows. We work across the 1st
row of the first matrix, multiplying down the 1st column of the second matrix, element by element.
We add the resulting products. Our answer goes in position a11 (top left) of the answer matrix
Final answ er
2 points
QUESTION 9
1. Evaluate
Answer:
In order for matrix multiplication to be defined, the number of columns in the first matrix must be
equal to the number of rows in the second matrix
The number of columns in the first matrix equal 2, the number of rows in the second matrix equal
3 so that these two matrices can be multiplied
Final answ er
NOT POSSIBLE
2 points
QUESTION 10
Evaluate
Answer:
To multiply two matrices. We multiply and add the elements as follows. We work across the 1st
row of the first matrix, multiplying down the 1st column of the second matrix, element by element.
We add the resulting products. Our answer goes in position a11 (top left) of the answer matrix
Final answ er
2 points
QUESTION 11
1. Evaluate
Answer
As a result of multiplication we will g...