Question 1

Use the matrix capabilities of a graphing utility to find AB , if possible.

Accepted Answer

A)    
B)    
C)    
D)    
E) not possible 
A)    
B)    
C)    
D)    
E) not possible B

Question 2

Use the matrix capabilities of a graphing utility to solve the following system of linear equations:

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)    C

Question 3

Find the determinant of   .

Accepted Answer

A) 0 
B) 64 
C) -110 
D) -96 
E) -88 
A) 0 
B) 64 
C) -110 
D) -96 
E) -88 D

Question 4

Solve for X in the equation given.

Accepted Answer

A)    
B)    
C) not possible 
D)    
E)    
A)    
B)    
C) not possible 
D)    
E)

Question 5

Find the inverse of the matrix   .

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 6

Use the matrix capabilities of a graphing utility to find the determinant of the matrix   .

Accepted Answer

A) -384 
B) -32 
C) -48 
D) 128 
E) -64 
A) -384 
B) -32 
C) -48 
D) 128 
E) -64

Question 7

Use the matrix capabilities of a graphing utility to find the inverse of the matrix   (if it exists).

Accepted Answer

A) does not exist 
B)    
C)    
D)    
E)    
A) does not exist 
B)    
C)    
D)    
E)

Question 8

Use the matrix capabilities of a graphing utility to find the determinant of the matrix   .

Accepted Answer

A) -10 
B) 4 
C) -12 
D) -6 
E) 7 
A) -10 
B) 4 
C) -12 
D) -6 
E) 7

Question 9

Given   , find   .

Accepted Answer

A) 168 
B) -80 
C) -120 
D) 40 
E) 88 
A) 168 
B) -80 
C) -120 
D) 40 
E) 88

Question 10

Solve the system of equations below by the Gaussian elimination method.

Accepted Answer

A)    
B)    
C) no solution 
D)    
E)    
A)    
B)    
C) no solution 
D)    
E)

Question 11

Solve the system of equations below by the Gaussian elimination method:

Accepted Answer

A) no solution 
B)    
C)    
D)    
E)    
A) no solution 
B)    
C)    
D)    
E)

Question 12

Use a determinant to find an equation of the line passing through the points   and   .

Accepted Answer

Answers are not uniq

Question 13

Use a determinant to find the area of the triangle shown below.

Accepted Answer

A)    square units 
B) 14 square units 
C)    square units 
D) 12 square units 
E)    square units 
A)    square units 
B) 14 square units 
C)    square units 
D) 12 square units 
E)    square units

Question 14

A lawn-and-garden store sells three types of fertilizer in 50-pound bags: Feed Weed, Winterizer Blend, and 17-17-17. The number of bags that were sold last weekend is represented by A . Feed Weed Winterizer 17-17-17         The selling price per bag and the profit per bag for the three types of fertilizer are represented by B (values are in dollars). Selling Price Profit       (a)Compute AB and interpret the result. Show all your work. (b)Find the store s total profit from fertilizer sales for the weekend. Show your work.

Accepted Answer

(a)Total Revenue Tot

Question 15

If possible, find 2 A 5 B .

Accepted Answer

A)    
B)    
C)    
D)    
E) not possible 
A)    
B)    
C)    
D)    
E) not possible

Question 16

Solve for X in the equation given.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 17

Find the determinant of   .

Accepted Answer

A) -512 
B) -448 
C) 0 
D) 256 
E) 192 
A) -512 
B) -448 
C) 0 
D) 256 
E) 192

Question 18

Use Cramer s Rule to solve the following system of linear equations:

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 19

If possible, find AB .

Accepted Answer

A)    
B) not possible 
C)    
D)    
E)    
A)    
B) not possible 
C)    
D)    
E)

Question 20

Find the inverse of the matrix   (if it exists).

Accepted Answer

A) does not exist 
B)    
C)    
D)    
E)    
A) does not exist 
B)    
C)    
D)    
E)

Use the matrix capabilities of a graphing utility to find AB , if possible.

Use the matrix capabilities of a graphing utility to solve the following system of linear equations:

Find the determinant of .

Solve for X in the equation given.

Find the inverse of the matrix .

Use the matrix capabilities of a graphing utility to find the determinant of the matrix .

Use the matrix capabilities of a graphing utility to find the inverse of the matrix (if it exists).

Use the matrix capabilities of a graphing utility to find the determinant of the matrix .

Given , find .

Solve the system of equations below by the Gaussian elimination method.

Solve the system of equations below by the Gaussian elimination method:

Use a determinant to find an equation of the line passing through the points and .

Use a determinant to find the area of the triangle shown below.

If possible, find 2 A 5 B .

Solve for X in the equation given.

Find the determinant of .

Use Cramer s Rule to solve the following system of linear equations:

If possible, find AB .

Find the inverse of the matrix (if it exists).

Equations and Inequalities

Functions and Graphs

Polynomial and Rational Functions

Exponential and Logarithmic Functions

Trigonometric Functions

Trigonometric Identities and Equations

Applications of Trigonometry

Topics in Analytic Geometry

Systems of Equations and Inequalities

Sequences, Series, and Probability

Preliminary Concepts

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Exam 10: Matrices

Use the matrix capabilities of a graphing utility to find AB , if possible.

Use the matrix capabilities of a graphing utility to solve the following system of linear equations:

Find the determinant of .

Solve for X in the equation given.

Find the inverse of the matrix .

Use the matrix capabilities of a graphing utility to find the determinant of the matrix .

Use the matrix capabilities of a graphing utility to find the inverse of the matrix (if it exists).

Use the matrix capabilities of a graphing utility to find the determinant of the matrix .

Given , find .

Solve the system of equations below by the Gaussian elimination method.

Solve the system of equations below by the Gaussian elimination method:

Use a determinant to find an equation of the line passing through the points and .

Use a determinant to find the area of the triangle shown below.

If possible, find 2 A 5 B .

Solve for X in the equation given.

Find the determinant of .

Use Cramer s Rule to solve the following system of linear equations:

If possible, find AB .

Find the inverse of the matrix (if it exists).

Equations and Inequalities

Functions and Graphs

Polynomial and Rational Functions

Exponential and Logarithmic Functions

Trigonometric Functions

Trigonometric Identities and Equations

Applications of Trigonometry

Topics in Analytic Geometry

Systems of Equations and Inequalities

Sequences, Series, and Probability

Preliminary Concepts

Filters