Question 1

Look at the equations  
(a)Set up these equations in the matrix form Ax = b
(b)Find  
(c)Using  
,solve the equations.

Accepted Answer

The answer of Look at the equations  
(a)Set up...

Question 2

Determine whether the intersection of the planes:  
has a unique solution or infinitely many solutions; then solve the system.

Accepted Answer

The answer of Determine whether the intersection of the planes:...

Question 3

Solve by the method of reduction:

Accepted Answer

The answer of Solve by the method of reduction: ...

Question 4

Solve by the method of reduction:

Accepted Answer

The answer of Solve by the method of reduction: ...

Question 5

Determine whether the intersection of the planes:  
has a unique solution or infinitely many solutions; then solve the system.

Accepted Answer

The answer of Determine whether the intersection of the planes:...

Question 6

Solve by the method of reduction:

Accepted Answer

The answer of Solve by the method of reduction: ...

Question 7

If A =  
,use row reduction to determine  
providing it exists.

Accepted Answer

The answer of If A =  
,use row reduction...

Question 8

If R =  ,then 
=
A) 
B) 
C) 
D) 
E) none of the above

Accepted Answer

The answer of If R =  ,then 
=
A) 
B)...

Question 9

Solve the following system of equations by reduction.

Accepted Answer

The answer of Solve the following system of equations by...

Question 10

Let A =  
; find  
.

Accepted Answer

The answer of Let A =  
; find ...

Question 11

(a)If A is the coefficient matrix of the system  
,determine  
.
(b)Use  
to solve the system.

Accepted Answer

The answer of (a)If A is the coefficient matrix of...

Question 12

Without solving,determine whether the following system of linear equations has a unique solution,or infinitely many solutions.

Accepted Answer

The answer of Without solving,determine whether the following system of...

Question 13

If  ,then
A)  = 3 - 6  ,  = 4 -  ,  = -2 + 3  ,  = 
B)  = 3 - 6  ,  = 4 +  ,  = -2 + 3  ,  = 
C)  = -1 +  ,  = 3  ,  = 6 + 2  ,  = 
D)  = -1 +  -  ,  = 4 + 2  +  ,  =  ,  = 
E)  = 2 +  ,  = -1 - 2  - 4  ,  =  ,  =

Accepted Answer

The answer of If  ,then
A)  = 3 -...

Question 14

Determine whether the intersection of the planes:  
has a unique solution or infinitely many solutions; then solve the system.

Accepted Answer

The answer of Determine whether the intersection of the planes:...

Question 15

A courier service has an order to deliver four products to a factory.The table below gives the specifications of the products.
A B C D
Volume(  
)5 2 9 17
Weight(lb)20 10 40 70
Value($)300 200 700 1100
If the company's large van can carry 500 cu ft.; 2100 lb,and is insured for $34,000,how many units of each product can be carried? Write the answer in terms of A,B,C,and D.

Accepted Answer

The answer of A courier service has an order to...

Question 16

By looking at the solution of the above question,can you give the number of solutions of the equations?

Accepted Answer

The answer of By looking at the solution of the...

Question 17

Solve by the method of reduction:

Accepted Answer

The answer of Solve by the method of reduction: ...

Question 18

By only looking at the following equations,can you say if the equations have a unique solution or infinitely many solutions?

Accepted Answer

The answer of By only looking at the following equations,can...

Question 19

Solve by the method of reduction:

Accepted Answer

The answer of Solve by the method of reduction: ...

Question 20

By using matrix reduction,solve the system:

Accepted Answer

The answer of By using matrix reduction,solve the system: ...

Quiz 7: Matrix Algebra

Look at the equations (a)Set up these equations in the matrix form Ax = b (b)Find (c)Using ,solve the equations.

Determine whether the intersection of the planes: has a unique solution or infinitely many solutions; then solve the system.

Solve by the method of reduction:

Solve by the method of reduction:

Determine whether the intersection of the planes: has a unique solution or infinitely many solutions; then solve the system.

Solve by the method of reduction:

If A = ,use row reduction to determine providing it exists.

If R = ,then =

Solve the following system of equations by reduction.

Let A = ; find .

(a)If A is the coefficient matrix of the system ,determine . (b)Use to solve the system.

Without solving,determine whether the following system of linear equations has a unique solution,or infinitely many solutions.

If ,then

Determine whether the intersection of the planes: has a unique solution or infinitely many solutions; then solve the system.

By looking at the solution of the above question,can you give the number of solutions of the equations?

Solve by the method of reduction:

By only looking at the following equations,can you say if the equations have a unique solution or infinitely many solutions?

Solve by the method of reduction:

By using matrix reduction,solve the system: