Question 1

If   and   determine   . Round to the nearest tenth.

Accepted Answer

A)  2 
B)  20.1 
C)  -20.1 
D)  7.4 
E)  -15.1 
A)  2 
B)  20.1 
C)  -20.1 
D)  7.4 
E)  -15.1

Question 2

Solve the system using the elimination method.

Accepted Answer

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

Question 3

If   and   determine   .

Accepted Answer

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

Question 4

Use the graph to determine the solution to the system of equations.

Accepted Answer

The answer of Use the graph to determine the solution...

Question 5

You need to earn at least $325 each week. You have two part-time jobs: in the library paying $8 per hour and at the student radio station paying $10 per hour. Let b be the hours you work in the library each week and let r be the hours that you work at the radio station each week. Write the inequality described here and graph its solution set.

Accepted Answer

The answer of You need to earn at least $325...

Question 6

You just inherited $25000. You are willing to invest up to the entire amount. The plan is to invest some of it in a bond fund that yields 4% per year and the rest of the invested amount in a stock fund that yields 10% per year. You want at least $1400 in investment income per year. Let b be the amount you invest in the bond fund and let s be the amount that you invest in the stock fund. Write the system of linear inequalities that describes this situation and graphically solve the system of inequalities.

Accepted Answer

The answer of You just inherited $25000. You are willing...

Question 7

Find the logarithm of   .

Accepted Answer

A)  -3 
B)    
C)  3 
D)  10 
E)    
A)  -3 
B)    
C)  3 
D)  10 
E)

Question 8

Which of the following is the correct missing value in the table for the function ?

Accepted Answer

A)    
B)    
C)  1 
D)  -1 
E)  5 
A)    
B)    
C)  1 
D)  -1 
E)  5

Question 9

Solve the system of equations using the substitution method.

Accepted Answer

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

Question 10

Graph the solution set of the linear inequality.

Accepted Answer

The answer of Graph the solution set of the linear...

Question 11

Find the common logarithm of the given value rounded to the nearest thousandth of:
The weight of an African Grey parrot: 380 grams.

Accepted Answer

A)  5.940 
B)  380 
C)  3.8 
D)  10 
E)  2.580 
A)  5.940 
B)  380 
C)  3.8 
D)  10 
E)  2.580

Question 12

Use the table of values to solve the system.

Accepted Answer

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

Question 13

A point in the solution set must make both inequalities __________.

Accepted Answer

The answer of A point in the solution set must...

Question 14

A system of equations can only be solved by one method; you must use graphing method of substitution or method of elimination but not more than one method.

Accepted Answer

A) True 
 B)False

Question 15

On August 21 2009 the World Health Organization announced its prediction that the number of new cases of H1N1 (swine flu) virus would double every 5 days for several months. As of July 27 2009 the number of new cases was 17871. Determine the instantaneous growth rate for the virus (rounded to the nearest ten-thousandths).

Accepted Answer

A)  0.3495 
B)  0.1386 
C)  1.3979 
D)  1.1487 
E)  0.0602 
A)  0.3495 
B)  0.1386 
C)  1.3979 
D)  1.1487 
E)  0.0602

Question 16

Write the linear inequality for the given graph.

Accepted Answer

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

Question 17

The number   is approximately equal to 2.71828.

Accepted Answer

A) True 
 B)False

Question 18

Solve the system using the elimination method.

Accepted Answer

A)    
B)    
C)  infinitely many solutions 
D)  no solution 
A)    
B)    
C)  infinitely many solutions 
D)  no solution

Question 19

Use the graph to determine the solution to the system of equations.

Accepted Answer

The answer of Use the graph to determine the solution...

Question 20

Determine whether the given point is in the solution set of the system of inequalities graphed below.

Accepted Answer

A)  Yes 
B)  No 
A)  Yes 
B)  No

If and determine . Round to the nearest tenth.

Solve the system using the elimination method.

If and determine .

Use the graph to determine the solution to the system of equations.

Find the logarithm of .

Which of the following is the correct missing value in the table for the function ?

Solve the system of equations using the substitution method.

Graph the solution set of the linear inequality.

Find the common logarithm of the given value rounded to the nearest thousandth of: The weight of an African Grey parrot: 380 grams.

Use the table of values to solve the system.

A point in the solution set must make both inequalities __________.

A system of equations can only be solved by one method; you must use graphing method of substitution or method of elimination but not more than one method.

Write the linear inequality for the given graph.

The number is approximately equal to 2.71828.

Solve the system using the elimination method.

Use the graph to determine the solution to the system of equations.

Determine whether the given point is in the solution set of the system of inequalities graphed below.

Building Blocks of Algebra

Linear Equations and Inequalities With One Variable

Linear Equations With Two Variables

Exponents and Polynomials

Factoring and Quadratic Equations

Rational Expressions and Equations

Radical Expressions and Equations

Modeling Data

Filters

Exam 4: Systems of Linear Equations

If and determine . Round to the nearest tenth.

Solve the system using the elimination method.

If and determine .

Use the graph to determine the solution to the system of equations.

Find the logarithm of .

Which of the following is the correct missing value in the table for the function ?

Solve the system of equations using the substitution method.

Graph the solution set of the linear inequality.

Find the common logarithm of the given value rounded to the nearest thousandth of: The weight of an African Grey parrot: 380 grams.

Use the table of values to solve the system.

A point in the solution set must make both inequalities __________.

A system of equations can only be solved by one method; you must use graphing method of substitution or method of elimination but not more than one method.

Write the linear inequality for the given graph.

The number is approximately equal to 2.71828.

Solve the system using the elimination method.

Use the graph to determine the solution to the system of equations.

Determine whether the given point is in the solution set of the system of inequalities graphed below.

Building Blocks of Algebra

Linear Equations and Inequalities With One Variable

Linear Equations With Two Variables

Exponents and Polynomials

Factoring and Quadratic Equations

Rational Expressions and Equations

Radical Expressions and Equations

Modeling Data

Filters