# []question 1 of 20 0.0/ 5.0 points use cramer’s rule to solve the

##### Question 1 of 20
0.0/ 5.0 Points
Use Cramer’s rule to solve the system. 2x + 4y – z = 32 x – 2y + 2z = -5 5x + y + z = 20

 A. {( 1, -9, -6)} B. {( 2, 7, 6)} C. {( 9, 6, 9)} D. {( 1, 9, 6)}
##### Question 2 of 20
5.0/ 5.0 Points
Find the products AB and BA to determine whether B is the multiplicative inverse of A.

A = , B = A. B = A-1 B. B ≠ A-1
##### Question 3 of 20
5.0/ 5.0 Points
Evaluate the determinant. A. 60 B. -30 C. -60 D. 30
##### Question 4 of 20
5.0/ 5.0 Points
Evaluate the determinant. ##### Question 5 of 20
0.0/ 5.0 Points
Solve the system of equations using matrices. Use Gauss-Jordan elimination.

3x – 7 – 7z = 7
6x + 4y – 3z = 67
-6x – 3y + z = -62

 A. {( 7, 1, 7)} B. {( 14, 7, -7)} C. {( -7, 7, 14)} D. {( 7, 7, 1)}
0.0/ 5.0 Points
0.0/ 5.0 Points
##### Question 8 of 20
0.0/ 5.0 Points
Determinants are used to show that three points lie on the same line (are collinear). If = 0,
then the points ( x1, y1), ( x2, y2), and ( x3, y3) are collinear. If the determinant does not equal 0, then the points are not collinear. Are the points (-2, -1), (0, 9), (-6, -21) and collinear?
##### Question 9 of 20
0.0/ 5.0 Points
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.

x + y + z = 9
2x – 3y + 4z = 7
x – 4y + 3z = -2

##### Question 10 of 20
0.0/ 5.0 Points
Let B = [-1 3 6 -3]. Find -4B.

 A. [-4 12 24 -12] B. [-3 1 4 -5] C. [4 -12 -24 12] D. [4 3 6 -3]
##### Question 11 of 20
0.0/ 5.0 Points
Find the inverse of the matrix, if possible.

A = ##### Question 12 of 20
0.0/ 5.0 Points
Find the product AB, if possible.

A = , B = 0.0/ 5.0 Points
##### Question 14 of 20
0.0/ 5.0 Points
Use Cramer’s rule to determine if the system is inconsistent system or contains dependent equations.

2x + 7 = 8
6x + 3y = 24

 A. system is inconsistent B. system contains dependent equations
##### Question 15 of 20
0.0/ 5.0 Points
Solve the system of equations using matrices. Use Gaussian elimination with back-substitution.

3x + 5y – 2w = -13
2x + 7z – w = -1
4y + 3z + 3w = 1
-x + 2y + 4z = -5

 A. {(-1, – , 0, )} B. {(1, -2, 0, 3)} C. {( , -2, 0, )}
##### Question 16 of 20
0.0/ 5.0 Points
Find the products AB and BA to determine whether B is the multiplicative inverse of A.
A = , B = A. B = A-1 B. B ≠ A-1
##### Question 17 of 20
0.0/ 5.0 Points
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.

3x – 2y + 2z – w = 2
4x + y + z + 6w = 8
-3x + 2y – 2z + w = 5
5x + 3z – 2w = 1

##### Question 18 of 20
0.0/ 5.0 Points
Give the order of the matrix, and identify the given element of the matrix. ; a12

 A. 4 × 2; -11 B. 4 × 2; 14 C. 2 × 4; 14 D. 2 × 4; -11
##### Question 19 of 20
0.0/ 5.0 Points
Let A = and B = . Find A – 3B.
##### Question 20 of 20
0.0/ 5.0 Points
Basic features
• Free title page and bibliography
• Unlimited revisions
• Plagiarism-free guarantee
• Money-back guarantee
On-demand options
• Writer’s samples
• Part-by-part delivery
• Overnight delivery
• Copies of used sources
Paper format
• 275 words per page
• 12 pt Arial/Times New Roman
• Double line spacing
• Any citation style (APA, MLA, Chicago/Turabian, Harvard)

# Our guarantees

We value our customers and so we ensure that what we do is 100% original..
With us you are guaranteed of quality work done by our qualified experts.Your information and everything that you do with us is kept completely confidential.

### Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

### Zero-plagiarism guarantee

The Product ordered is guaranteed to be original. Orders are checked by the most advanced anti-plagiarism software in the market to assure that the Product is 100% original. The Company has a zero tolerance policy for plagiarism.

### Free-revision policy

The Free Revision policy is a courtesy service that the Company provides to help ensure Customer’s total satisfaction with the completed Order. To receive free revision the Company requires that the Customer provide the request within fourteen (14) days from the first completion date and within a period of thirty (30) days for dissertations.

The Company is committed to protect the privacy of the Customer and it will never resell or share any of Customer’s personal information, including credit card data, with any third party. All the online transactions are processed through the secure and reliable online payment systems.

### Fair-cooperation guarantee

By placing an order with us, you agree to the service we provide. We will endear to do all that it takes to deliver a comprehensive paper as per your requirements. We also count on your cooperation to ensure that we deliver on this mandate.

## Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
\$26
The price is based on these factors: