help with 'types' of functions...

[Mathlete]

Srry here are some examples

$1500 at 6.25% for 2 years

yearly
P = 1500(1 + .0625/1)^(1*2)
= 1693.36

Twice a year
P = 1500(1 + .0625/2)^(2*2)
= 1696.47

Quarterly
P = 1500(1 + .0625/4)^(4*2)
=1698.08

 

[zixxer]

wow thanks matt

 

[zixxer]

ok last (I hope) question...

on the problem

4.7eSQRT3

my calc only has e^x

so can I use e^1?

answer I get is 22.1286..

 

[zixxer]

Originally posted by: Mathlete
Here is a gereric formula that will work for anything other the continuous(you alreadt have that formula)

A=P * ( 1 + r/n)^nt

where P is the principle
r is the rate given as an APR
n is the number of times interest is compounded per year
t is the number of years

sometimes you will see r/n written as i which stands for the interest per payment period


Also remember that e is a number so when you had 1500e^.0625(2) this is actually a number

is the nt like A=P * ( 1 + r/n)^n*t
or
A=P * ( 1 + r/n)^(nt)

 

[BigJ]

Originally posted by: armatron
ok last (I hope) question...

on the problem

4.7eSQRT3

my calc only has e^x

so can I use e^1?

answer I get is 22.1286..

Yes you can use e^1. It's the rules of exponents. Where x > 0, x^0 = 1, x^1 = x, x^2 = x*x, etc

I'm sorry, but after seeing all these questions, are you really in Calc? Some of these are very, very basic questions and shouldn't be trouble to remember for someone that has the intelligence to take a college level calculus course. Especially if you don't know how to use your calculator to get one instance of e.

 

[Mathlete]

srry I had to log off

the second one ^(nt)

 

[zixxer]

Originally posted by: BigJ

Originally posted by: armatron
ok last (I hope) question...

on the problem

4.7eSQRT3

my calc only has e^x

so can I use e^1?

answer I get is 22.1286..

Yes you can use e^1.

I'm sorry, but after seeing all these questions, are you really in Calc? Some of these are very, very basic questions and shouldn't be trouble to remember for someone that has the intelligence to take a college level calculus course.

yeah I'm really in calc. I took precalc in high school, and learned all this junk in that class.

My calc teacher didn't go over any past knowledge... yet it's on the final. I'm reviewing it in case he asks specific questions (as are on the review sheet..)

 

[BigJ]

Originally posted by: armatron

Originally posted by: BigJ

Originally posted by: armatron
ok last (I hope) question...

on the problem

4.7eSQRT3

my calc only has e^x

so can I use e^1?

answer I get is 22.1286..

Yes you can use e^1.

I'm sorry, but after seeing all these questions, are you really in Calc? Some of these are very, very basic questions and shouldn't be trouble to remember for someone that has the intelligence to take a college level calculus course.

yeah I'm really in calc. I took precalc in high school, and learned all this junk in that class.

My calc teacher didn't go over any past knowledge... yet it's on the final. I'm reviewing it in case he asks specific questions (as are on the review sheet..)

Gotcha, well then if you have any more questions, feel free to ask. 🙂

EDIT: Here's a website that has a bunch of precalculus stuff, you may be able to find the answers to some of the questions you have on this site

http://www.geocities.com/CapeCanaveral/Launchpad/2426/