Question 1

The following statement is an example of numerical data: "26 dogs at a given adoption center, tabulated by breeds (Terriers, Hounds, Retrievers)."

Accepted Answer

A) True 
 B)False

Question 2

Solve the system of linear equations.

Accepted Answer

A)  No solution 
B)  Infinitely many solutions 
C)    
D)    
E)    
A)  No solution 
B)  Infinitely many solutions 
C)    
D)    
E)

Question 3

Which one of the following is the coefficient matrix for the given system of equations?

Accepted Answer

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

Question 4

To find the inverse of a   matrix, we can multiply the matrix by the   identity matrix.

Accepted Answer

A) True 
 B)False

Question 5

Which one of the following is the augmented matrix in row-echelon form for the system below?

Accepted Answer

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

Question 6

A college conducted a survey of students satisfaction with three academic courses: mathematics, English, and science. The results are tabulated in the data matrix below. Find the scalar product   .

Accepted Answer

A)    
B)    
C)  None of the above 
D)    
E)    
A)    
B)    
C)  None of the above 
D)    
E)

Question 7

Solve the system of linear equations.

Accepted Answer

A)    
B)  No solution 
C)  Infinitely many solutions 
D)    
E)    
A)    
B)  No solution 
C)  Infinitely many solutions 
D)    
E)

Question 8

Solve the system of linear equations.

Accepted Answer

A)    
B)    
C)    
D)  No Solution 
E)    
A)    
B)    
C)    
D)  No Solution 
E)

Question 9

A solution to a system of equations with 3 unknowns is the point of intersection of 2 lines.

Accepted Answer

A) True 
 B)False

Question 10

Find the inverse matrix of   .

Accepted Answer

A)    
B)    
C)  Not invertible 
D)    
E)    
A)    
B)    
C)  Not invertible 
D)    
E)

Question 11

The solution to the system   is   . (Rounded to the nearest hundredth).

Accepted Answer

A) True 
 B)False

Question 12

Perform the matrix operation as indicated.

Accepted Answer

A)    
B)  Not possible 
C)    
D)    
E)    
A)    
B)  Not possible 
C)    
D)    
E)

Question 13

A college conducted a survey of students satisfaction with three academic courses: mathematics, English, and science. The results are tabulated in the data matrix below. How many students gave a fair rating for these courses?

Accepted Answer

A)  16 
B)  18 
C)  14 
D)  6 
E)  22 
A)  16 
B)  18 
C)  14 
D)  6 
E)  22

Question 14

If a system of linear equations of 3 unknowns has infinitely many solutions, then the graph of each equation is identical.

Accepted Answer

A) True 
 B)False

Question 15

If the graph of a system of equations results in two parallel lines, then there is/are 2 solution(s) to the system.

Accepted Answer

A) True 
 B)False

Question 16

Find the solution of the system of linear equations described by the following matrix. Round to the nearest hundredth.

Accepted Answer

A)    
B)    
C)  No solution 
D)    
E)  Infinitely many solutions 
A)    
B)    
C)  No solution 
D)    
E)  Infinitely many solutions

Question 17

Solve the system of linear equations.

Accepted Answer

A)    
B)    
C)    
D)  No solution. 
E)    
A)    
B)    
C)    
D)  No solution. 
E)

Question 18

Solve the system of linear equations.

Accepted Answer

A)    
B)    
C)    
D)  Not enough information 
E)    
A)    
B)    
C)    
D)  Not enough information 
E)

Question 19

Find the inverse matrix of   .

Accepted Answer

A)  Not invertible 
B)    
C)    
D)    
E)    
A)  Not invertible 
B)    
C)    
D)    
E)

Question 20

Perform the matrix operation as indicated.

Accepted Answer

A)    
B)  Not possible 
C)    
D)    
E)    
A)    
B)  Not possible 
C)    
D)    
E)

The following statement is an example of numerical data: "26 dogs at a given adoption center, tabulated by breeds (Terriers, Hounds, Retrievers)."

Solve the system of linear equations.

Which one of the following is the coefficient matrix for the given system of equations?

To find the inverse of a matrix, we can multiply the matrix by the identity matrix.

Which one of the following is the augmented matrix in row-echelon form for the system below?

A college conducted a survey of students satisfaction with three academic courses: mathematics, English, and science. The results are tabulated in the data matrix below. Find the scalar product .

Solve the system of linear equations.

Solve the system of linear equations.

A solution to a system of equations with 3 unknowns is the point of intersection of 2 lines.

Find the inverse matrix of .

The solution to the system is . (Rounded to the nearest hundredth).

Perform the matrix operation as indicated.

A college conducted a survey of students satisfaction with three academic courses: mathematics, English, and science. The results are tabulated in the data matrix below. How many students gave a fair rating for these courses?

If a system of linear equations of 3 unknowns has infinitely many solutions, then the graph of each equation is identical.

If the graph of a system of equations results in two parallel lines, then there is/are 2 solution(s) to the system.

Find the solution of the system of linear equations described by the following matrix. Round to the nearest hundredth.

Solve the system of linear equations.

Solve the system of linear equations.

Find the inverse matrix of .

Perform the matrix operation as indicated.

Data, Functions, and Models

Linear Functions and Models

Exponential Functions and Models

Logarithmic Functions and Exponential Modela

Quadratic Functions and Models

Power, Polynomial, and Rational Functions

Filters

Exam 7: Systems of Equations and Data in Categories

The following statement is an example of numerical data: "26 dogs at a given adoption center, tabulated by breeds (Terriers, Hounds, Retrievers)."

Solve the system of linear equations.

Which one of the following is the coefficient matrix for the given system of equations?

To find the inverse of a matrix, we can multiply the matrix by the identity matrix.

Which one of the following is the augmented matrix in row-echelon form for the system below?

A college conducted a survey of students satisfaction with three academic courses: mathematics, English, and science. The results are tabulated in the data matrix below. Find the scalar product .

Solve the system of linear equations.

Solve the system of linear equations.

A solution to a system of equations with 3 unknowns is the point of intersection of 2 lines.

Find the inverse matrix of .

The solution to the system is . (Rounded to the nearest hundredth).

Perform the matrix operation as indicated.

A college conducted a survey of students satisfaction with three academic courses: mathematics, English, and science. The results are tabulated in the data matrix below. How many students gave a fair rating for these courses?

If a system of linear equations of 3 unknowns has infinitely many solutions, then the graph of each equation is identical.

If the graph of a system of equations results in two parallel lines, then there is/are 2 solution(s) to the system.

Find the solution of the system of linear equations described by the following matrix. Round to the nearest hundredth.

Solve the system of linear equations.

Solve the system of linear equations.

Find the inverse matrix of .

Perform the matrix operation as indicated.

Data, Functions, and Models

Linear Functions and Models

Exponential Functions and Models

Logarithmic Functions and Exponential Modela

Quadratic Functions and Models

Power, Polynomial, and Rational Functions

Filters