Question 1

If  and  , are C and D inverse matrices

Accepted Answer

The answer of If  and  , are C...

Question 2

Find the inverse matrix, if one exists.  
A) 
B)  
C) 
D)  
E) no inverse exists

Accepted Answer

The answer of Find the inverse matrix, if one exists....

Question 3

Find the inverse of the matrix  
A)  
B)  
C)  
D)  
E)

Accepted Answer

The answer of Find the inverse of the matrix ...

Question 4

Given matrix . Find A^-1 the inverse matrix. A) B) C) D) E)

Accepted Answer

The answer of Given matrix . Find A^-1 the...

Question 5

A) -1
B) 0
C)  
D)

Accepted Answer

The answer of  
A) -1
B) 0
C)  
D) ...

Question 6

Find the inverse of the matrix  
A)  
B)  
C)  
D) 
E)

Accepted Answer

The answer of Find the inverse of the matrix ...

Question 7

Given that matrix  . Find the inverse matrix.
A)  
B)  
C)  
D)  
E)

Accepted Answer

The answer of Given that matrix  . Find the...

Question 8

Use inverse matrices to solve the system of linear equations.  
A)  
B)  
C)  
D) 
E)

Accepted Answer

The answer of Use inverse matrices to solve the system...

Question 9

Use inverse matrices to solve the system of linear equations. 
A)  
B)  
C)  
D)  
E)

Accepted Answer

The answer of Use inverse matrices to solve the system...

Question 10

Use inverse matrices and the graphing calculator to find the solution of the system of equations.  
A)  
B)  
C)  
D)  
E)

Accepted Answer

The answer of Use inverse matrices and the graphing calculator...

Question 11

Let  ,  . Find an elementary matrix E such that  .
A)  
B)  
C)  
D)  
E)

Accepted Answer

The answer of Let  ,  . Find an...

Question 12

Let  ,  . Find an elementary matrix E such that  .
A)  
B) 
C)  
D) 
E)

Accepted Answer

The answer of Let  ,  . Find an...

Question 13

Find the inverse of the elementary matrix  
A)  
B)  
C) 
D)  
E)

Accepted Answer

The answer of Find the inverse of the elementary matrix...

Question 14

Find the inverse of the matrix  
A)  
B)  
C)  
D)  
E)

Accepted Answer

The answer of Find the inverse of the matrix ...

Question 15

Find the inverse of the matrix  using elementary matrices.
A)

B)

C)

D)

E)

Accepted Answer

The answer of Find the inverse of the matrix ...

Question 16

Which of the following is a product of elementary matrices for the matrix  
A) 
B) 
C)  
D) 
E)

Accepted Answer

The answer of Which of the following is a product...

Question 17

Which of the following is a product of elementary matrices for the matrix  
A)

B)

C)

D)

E)

Accepted Answer

The answer of Which of the following is a product...

Question 18

Which of the following is the LU-factorization of the matrix  
A)  
B)  
C)  
D)  
E)

Accepted Answer

The answer of Which of the following is the LU-factorization...

Question 19

Which of the following is the LU-factorization of the matrix  
A) 
B)  
C) 
D)  
E)

Accepted Answer

The answer of Which of the following is the LU-factorization...

Question 20

The market research department at a manufacturing plant determines that 30% of the people who purchase the plant's product during any month will not purchase it the next month. On the other hand, 40% of the people who do not purchase the product during any month will purchase it the next month. In a population of 1000 people, 100 people purchased the product this month. How many will purchase the product next month?
A) 510 people
B) 570 people
C) 430 people
D) 400 people
E) 370 people

Accepted Answer

The answer of The market research department at a manufacturing...

Quiz 2: Matrices

If and , are C and D inverse matrices

Find the inverse matrix, if one exists.

Find the inverse of the matrix

Given matrix . Find A-1 the inverse matrix.

Find the inverse of the matrix

Given that matrix . Find the inverse matrix.

Use inverse matrices to solve the system of linear equations.

Use inverse matrices to solve the system of linear equations.

Use inverse matrices and the graphing calculator to find the solution of the system of equations.

Let , . Find an elementary matrix E such that .

Let , . Find an elementary matrix E such that .

Find the inverse of the elementary matrix

Find the inverse of the matrix

Find the inverse of the matrix using elementary matrices.

Which of the following is a product of elementary matrices for the matrix

Which of the following is a product of elementary matrices for the matrix

Which of the following is the LU-factorization of the matrix

Which of the following is the LU-factorization of the matrix

Given matrix . Find A^-1 the inverse matrix.