Question 1

Evaluate the expression.

Accepted Answer

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

Question 2

Solve for X in the equation given.

Accepted Answer

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

Question 3

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.   The selling price per bag and the profit per bag for the three types of fertilizer are represented by B (values are in dollars).   
(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) @#IMG-DLM& 
(b) The total

Question 4

Of the products AB, BA, A2, and B2, which ones are possible for the given matrices?

Accepted Answer

A)  AB only 
B)  AB and BA only 
C)  BA only 
D)  A2 and B2 only 
E)  AB, BA, A2, and B2 
A)  AB only 
B)  AB and BA only 
C)  BA only 
D)  A2 and B2 only 
E)  AB, BA, A2, and B2

Question 5

Solve for x given the following equation involving a determinant.

Accepted Answer

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

Question 6

Show that A is the inverse of
B. Show all your work.       ALERT TO PUBLISHER: Diploma contained variable "b" and a condition involving "b" that is not used in this problem. I deleted these from the question.

Accepted Answer

@#IMG-DLM& @#IMG-DLM& @#IMG-DLM& ALERT TO PUBLISHER: Diploma

Question 7

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 a determinant to determine whether the points   and   are collinear. Show all work.

Accepted Answer

@#IMG-DLM& ; therefo

Evaluate the expression.

Solve for X in the equation given.

Of the products AB, BA, A², and B², which ones are possible for the given matrices?

Solve for x given the following equation involving a determinant.

Show that A is the inverse of B. Show all your work. ALERT TO PUBLISHER: Diploma contained variable "b" and a condition involving "b" that is not used in this problem. I deleted these from the question.

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

Use a determinant to determine whether the points and are collinear. Show all work.

Prerequisites

Equations, Inequalities, and Mathematical Modeling

Functions and Their Graphs

Polynomial Functions

Rational Functions and Conics

Exponential and Logarithmic Functions

Analytic Trigonometry

Additional Topics in Trigonometry

Systems of Equations and Inequalities

Filters

Exam 10: Matrices and Determinants

Evaluate the expression.

Solve for X in the equation given.

Of the products AB, BA, A2, and B2, which ones are possible for the given matrices?

Solve for x given the following equation involving a determinant.

Show that A is the inverse of B. Show all your work. ALERT TO PUBLISHER: Diploma contained variable "b" and a condition involving "b" that is not used in this problem. I deleted these from the question.

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

Use a determinant to determine whether the points and are collinear. Show all work.

Prerequisites

Equations, Inequalities, and Mathematical Modeling

Functions and Their Graphs

Polynomial Functions

Rational Functions and Conics

Exponential and Logarithmic Functions

Analytic Trigonometry

Additional Topics in Trigonometry

Systems of Equations and Inequalities

Filters

Of the products AB, BA, A², and B², which ones are possible for the given matrices?