Algebra II : Algebra II
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Example Questions
Example Question #101 : Simple Exponents
Simplify:
Simplify each term.
Replace all the final values.
The answer is:
Example Question #3431 : Algebra Ii
Try without a calculator:
Which is true about 
Cannot be determined
Example Question #3432 : Algebra Ii
Evaluate the following expression:
Example Question #1 : Interest Equations
Catherine invests $3500 in an investment account. The account earns 10% interest, compounded quarterly. After 5 years, how much money will she have?
The formula for calculating the future value of an interest earning account is
where
The problem asks for the amount of money in the account after 5 years, with 10% interested compounded four times per year (quarterly).
Plug in the given quantities and simplify:
Example Question #2 : Interest Equations
Felicia put money in a saving account with a 5% interest rate, compounded annually. After five years, she had $10,000. How much was her initial investment?
The formula for finding the future value of an investment is
where
Plug in the given numbers and solve for the present value:
Example Question #1 : Interest Equations
Jamie deposits $5000 into an account at ABC bank. The account will earn a 4% interest rate compounded yearly. Jamie would like to withdraw the accumulated amount after 5 years and close the account. How much money would Jamie withdraw after 5 years? (Round your answer to the nearest dollar)
Initial amount = 5000
The account earns 4% compounded yearly ===> Each $1.00 will grow into $1.04.
Growth rate = 1.04
Jamie will withdraw the money after 5 years. Since the interest is compounded yearly, the number of periods is equal to the number of years the money will be in the account.
number of periods = 5
From the above information, we can calculate the amount accumulated (or final amount) after 5 years using the following formula:
final amount = initial amount * (growth rate)number of periods
Example Question #4 : Interest Equations
Round the answer to two decimals.
Anthony put 
How much does he have in his savings account after 
The formula for computing interest is:
Beginning Amount x ((1 + rate)^number of years) = Ending Amount After number of years
Make sure to convert the rate from percent to number: 3% = 0.03
So the answer is
Example Question #1 : Interest Equations
For coninuous compound interest:
Where
If an initial deposit of 
None of the other answers.
Using the equation for continuous compound interest and the given information, we get
Example Question #6 : Interest Equations
Remember
If an account has a starting principle P = $5,000, an interest rate r = 12% or 0.12, compounded annually, how much money should there be after five years? Assume no money has been added or taken out of the account since it was opened.
P = Initial deposit = 5000
r = Interest rate = 0.12
n = Number of times interest is compounded per year = 1
t = Number of years that have passed = 5
Round to the nearest cent or hundredth is 
Example Question #7 : Interest Equations
Julio invests $5000 into an account with a 2.5% interest rate, compounded quarterly. What is his account balance after 1 year (rounded to the nearest cent)?
To determine Julio's account balance, we must use the interest formula given below:
where P is his principal (initial) investment, r is the interest rate (as a decimal), n is the number of times the interest is compounded, and t is the amount of time elapsed.
Plugging in all of our given information into the above formula - knowing that quarterly means four times a year - we get
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