Question 1

Solve the equation.   x = __________

Accepted Answer

The answer of Solve the equation.   x =...

Question 2

The half-life of iodine-131 is 8 days. If a patient is administered a 1,700-microgram dose of iodine-131 , how much iodine-131 will be in the patient's system after 8 days and after 22 days?

Accepted Answer

A)  850 micrograms after 8 days; 265.1 micrograms after 22 days 
B)  850 micrograms after 8 days; 239.6 micrograms after 22 days 
C)  850 micrograms after 8 days; 252.7 micrograms after 22 days 
D)  850 micrograms after 8 days; 425 micrograms after 22 days 
E)  850 micrograms after 8 days; 258.5 micrograms after 22 days 
A)  850 micrograms after 8 days; 265.1 micrograms after 22 days 
B)  850 micrograms after 8 days; 239.6 micrograms after 22 days 
C)  850 micrograms after 8 days; 252.7 micrograms after 22 days 
D)  850 micrograms after 8 days; 425 micrograms after 22 days 
E)  850 micrograms after 8 days; 258.5 micrograms after 22 days

Question 3

Use properties of logarithms to expand the expression as much as possible.

Accepted Answer

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

Question 4

Find a decimal approximation of the following natural logarithm. Round your answer to four decimal places, if necessary. ln 341

Accepted Answer

The answer of Find a decimal approximation of the following...

Question 5

Simplify the following expression.

Accepted Answer

The answer of Simplify the following expression.  ...

Question 6

Find x .

Accepted Answer

The answer of Find x .  ...

Question 7

Automobiles built before 1993 use Freon in their air conditioners. The federal government now prohibits the manufacture of Freon. Because the supply of Freon is decreasing, the price per pound is increasing exponentially. Current estimates put the formula for the price per pound of Freon at   where t is the number of years since 1990. Find the price of Freon in 1990 and 1999. What is the anticipated cost for Freon in the year 2009?

Accepted Answer

A)  $1.89 in 1990, $13.74 in 1999 and $131.15 in 2009 
B)  $1.89 in 1990, $13.14 in 1999 and $25.64 in 2009 
C)  $1.89 in 1990, $14.08 in 1999 and $131.15 in 2009 
D)  $1.89 in 1990, $21.26 in 1999 and $44.89 in 2009 
E)  $1.89 in 1990, $14.08 in 1999, and $130.63 in 2009 
A)  $1.89 in 1990, $13.74 in 1999 and $131.15 in 2009 
B)  $1.89 in 1990, $13.14 in 1999 and $25.64 in 2009 
C)  $1.89 in 1990, $14.08 in 1999 and $131.15 in 2009 
D)  $1.89 in 1990, $21.26 in 1999 and $44.89 in 2009 
E)  $1.89 in 1990, $14.08 in 1999, and $130.63 in 2009

Question 8

Find the following logarithm to four decimal places.

Accepted Answer

A)  -3.4815 
B)  3.7145 
C)  -8.0164 
D)  3.4815 
E)  -3.7145 
A)  -3.4815 
B)  3.7145 
C)  -8.0164 
D)  3.4815 
E)  -3.7145

Question 9

Could the following table of values represent ordered pairs from a one-to-one function? Answer yes or no . x y - 2 0.3 - 1 0.5 0 0.7 1 0.9 2 1.1

Accepted Answer

The answer of Could the following table of values represent...

Question 10

For the following one-to-one function, find the equation of the inverse.

Accepted Answer

The answer of For the following one-to-one function, find the...

Question 11

The function   where V is value and t is time in years, can be used to find the value of a crane for the first 6 years of use. How much time must pass before the crane will be worth only $55,000? Please round your answer to the nearest month. __________ year(s) __________ month(s)

Accepted Answer

The answer of The function   where V is...

Question 12

If   find

Accepted Answer

The answer of If   find  ...

Question 13

Write the expression as a single logarithm.

Accepted Answer

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

Question 14

Solve the equation.

Accepted Answer

The answer of Solve the equation.  ...

Question 15

Use properties of logarithms to expand the expression as much as possible.

Accepted Answer

The answer of Use properties of logarithms to expand the...

Question 16

Suppose you deposit $1,000 in an account with an annual interest rate of 9% compounded quarterly. How many years will it take for the account to contain $3,000?

Accepted Answer

A)  3.19 years 
B)  12.75 years 
C)  49.37 years 
D)  14.87 years 
E)  12.34 years 
A)  3.19 years 
B)  12.75 years 
C)  49.37 years 
D)  14.87 years 
E)  12.34 years

Question 17

Solve the equation for x .

Accepted Answer

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

Question 18

Suppose you deposit $1,600 in an account with an annual interest rate of 5% compounded quarterly. Find the amount of money in the account after 11 years.

Accepted Answer

A)  $1,834.28 
B)  $13,691.44 
C)  $2,736.54 
D)  $2,480.00 
E)  $2,763.77 
A)  $1,834.28 
B)  $13,691.44 
C)  $2,736.54 
D)  $2,480.00 
E)  $2,763.77

Question 19

Solve the equation for x .

Accepted Answer

The answer of Solve the equation for x . ...

Question 20

Write the equation in exponential form.

Accepted Answer

The answer of Write the equation in exponential form. ...

Solve the equation. x = __________

The half-life of iodine-131 is 8 days. If a patient is administered a 1,700-microgram dose of iodine-131 , how much iodine-131 will be in the patient's system after 8 days and after 22 days?

Use properties of logarithms to expand the expression as much as possible.

Find a decimal approximation of the following natural logarithm. Round your answer to four decimal places, if necessary. ln 341

Simplify the following expression.

Find x .

Find the following logarithm to four decimal places.

Could the following table of values represent ordered pairs from a one-to-one function? Answer yes or no . x y - 2 0.3 - 1 0.5 0 0.7 1 0.9 2 1.1

For the following one-to-one function, find the equation of the inverse.

The function where V is value and t is time in years, can be used to find the value of a crane for the first 6 years of use. How much time must pass before the crane will be worth only $55,000? Please round your answer to the nearest month. year(s) month(s)

If find

Write the expression as a single logarithm.

Solve the equation.

Use properties of logarithms to expand the expression as much as possible.

Suppose you deposit $1,000 in an account with an annual interest rate of 9% compounded quarterly. How many years will it take for the account to contain $3,000?

Solve the equation for x .

Suppose you deposit $1,600 in an account with an annual interest rate of 5% compounded quarterly. Find the amount of money in the account after 11 years.

Solve the equation for x .

Write the equation in exponential form.

Notation and Symbols

Simplifying Expressions

Paired Data and Graphing Ordered Pairs

Multiplication With Exponents

The Greatest Common Factor and Factoring by Grouping

Reducing Rational Expressions to Lowest Terms

Review of Solving Equations

The Slope of a Line

Rational Exponents

Completing the Square

The Circle

Sequences

Filters

Exam 11: Exponential Functions

Solve the equation. x = __________

The half-life of iodine-131 is 8 days. If a patient is administered a 1,700-microgram dose of iodine-131 , how much iodine-131 will be in the patient's system after 8 days and after 22 days?

Use properties of logarithms to expand the expression as much as possible.

Find a decimal approximation of the following natural logarithm. Round your answer to four decimal places, if necessary. ln 341

Simplify the following expression.

Find x .

Find the following logarithm to four decimal places.

Could the following table of values represent ordered pairs from a one-to-one function? Answer yes or no . x y - 2 0.3 - 1 0.5 0 0.7 1 0.9 2 1.1

For the following one-to-one function, find the equation of the inverse.

The function where V is value and t is time in years, can be used to find the value of a crane for the first 6 years of use. How much time must pass before the crane will be worth only $55,000? Please round your answer to the nearest month. __________ year(s) __________ month(s)

If find

Write the expression as a single logarithm.

Solve the equation.

Use properties of logarithms to expand the expression as much as possible.

Suppose you deposit $1,000 in an account with an annual interest rate of 9% compounded quarterly. How many years will it take for the account to contain $3,000?

Solve the equation for x .

Suppose you deposit $1,600 in an account with an annual interest rate of 5% compounded quarterly. Find the amount of money in the account after 11 years.

Solve the equation for x .

Write the equation in exponential form.

Notation and Symbols

Simplifying Expressions

Paired Data and Graphing Ordered Pairs

Multiplication With Exponents

The Greatest Common Factor and Factoring by Grouping

Reducing Rational Expressions to Lowest Terms

Review of Solving Equations

The Slope of a Line

Rational Exponents

Completing the Square

The Circle

Sequences

Filters

The function where V is value and t is time in years, can be used to find the value of a crane for the first 6 years of use. How much time must pass before the crane will be worth only $55,000? Please round your answer to the nearest month. year(s) month(s)