Question 1

Write the word or phrase that best completes each statement or answers the question.
-

Accepted Answer

The answer of Write the word or phrase that best...

Question 2

Graph the system of inequalities.
-

Accepted Answer

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

Question 3

Use a graphing utility to solve the system of equations. Express the solution rounded to two decimal places.
-

Accepted Answer

A) x = -1.37, y = 2.14 or (-1.37, 2.14) 
B) x = 2.14, y = 1.37 or (2.14, 1.37) 
C) x = 1.37, y = 2.14 or (1.37, 2.14) 
D) x = 2.14, y = -1.37 or (2.14, -1.37) 
A) x = -1.37, y = 2.14 or (-1.37, 2.14) 
B) x = 2.14, y = 1.37 or (2.14, 1.37) 
C) x = 1.37, y = 2.14 or (1.37, 2.14) 
D) x = 2.14, y = -1.37 or (2.14, -1.37)

Question 4

Solve the system of equations using matrices (row operations). If the system has no solution, say that it is
inconsistent.
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Accepted Answer

A)    
B) x = 27, y = 9, z = 6; (27, 9, 6) 
C) x = -9, y = -9, z = 3; (-9, -9, 3) 
D) inconsistent 
A)    
B) x = 27, y = 9, z = 6; (27, 9, 6) 
C) x = -9, y = -9, z = 3; (-9, -9, 3) 
D) inconsistent

Question 5

Write the word or phrase that best completes each statement or answers the question.
-A summer camp wants to hire counselors and aides to fill its staffing needs at minimum cost. The averagemonthly salary of a counselor is $2400 and the average monthly salary of an aide is $1100. The camp canaccommodate up to 45 staff members and needs at least 30 to run properly. They must have at least 10aides, and may have up to 3 aides for every 2 counselors. How many counselors and how many aidesshould the camp hire to minimize cost?

Accepted Answer

A) 12 counselors and 18 aides 
B) 27 counselors and 18 aides 
C) 35 counselors and 10 aides 
D) 18 counselors and 12 aides 
A) 12 counselors and 18 aides 
B) 27 counselors and 18 aides 
C) 35 counselors and 10 aides 
D) 18 counselors and 12 aides

Question 6

Find the value of the determinant.
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Accepted Answer

A) -36 
B) 76 
C) 36 
D) -12 
A) -36 
B) 76 
C) 36 
D) -12

Question 7

Write the augmented matrix for the system.
-

Accepted Answer

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

Question 8

Graph the system of inequalities.
-

Accepted Answer

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

Write the word or phrase that best completes each statement or answers the question. -

Graph the system of inequalities. -

Use a graphing utility to solve the system of equations. Express the solution rounded to two decimal places. -

Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent. -

Find the value of the determinant. -

Write the augmented matrix for the system. -

Graph the system of inequalities. -

Equations and Inequalities

Graphs

Functions and Their Graphs

Linear and Quadratic Functions

Polynomial and Rational Functions

Exponential and Logarithmic Functions

Analytic Geometry

Sequences; Induction; the Binomial Theorem

Counting and Probability

Graphing Utilities

Filters

Exam 8: Systems of Equations and Inequalities

Write the word or phrase that best completes each statement or answers the question. -

Graph the system of inequalities. -

Use a graphing utility to solve the system of equations. Express the solution rounded to two decimal places. -

Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent. -

Find the value of the determinant. -

Write the augmented matrix for the system. -

Graph the system of inequalities. -

Equations and Inequalities

Graphs

Functions and Their Graphs

Linear and Quadratic Functions

Polynomial and Rational Functions

Exponential and Logarithmic Functions

Analytic Geometry

Sequences; Induction; the Binomial Theorem

Counting and Probability

Graphing Utilities

Filters