Question

how do you solve for r: A=P(1+r)^2

Answer 1

divide by P, take the square root, subtract 1. i assume r is positive

Answer 2

a=p(1+r)^2
a/p=(1+r)^2
=> r=1+(a/p)^2 (or) r=1-(a/p)^2 :)

Answer 3

bracket it is square root, not square

Answer 4

\[A=P(1+r)^2\implies(1+r)^2=\frac{A}{P}\implies1+r=\sqrt{\frac{A}{P}}\implies r= \sqrt{\frac{A}{P}}-1\]

Answer 5

what bendt said!

Answer 6

very pretty bendt

Answer 7

Thanks :P

Answer 8

although in reality it should be
\[\pm\sqrt{\frac{A}{P}}\]

Answer 9

ok thanks

Answer 10

but in the application of this formula it is really just the positive root that counts.

Answer 11

that is right bu
what does A stand for?

Answer 12

A stands for the thing on the right!

Answer 13

i know that lol but it looks like thats a formula for that business crap stuff

Answer 14

An area?

Answer 15

yea rite sattelite73

Answer 16

i have to go but i am not leaving until myininaya compliments my icon

Answer 17

like r is the rate
and P is the principal

Answer 18

A is amount if you invest P dollars at r rate of interest for 2 years

Answer 19

i dont know how i feel about your icon yet
so you won't leave until i have a feeling i guess
so you can lose money?
so A can be negative so you can have + or - on that one thing

Answer 20

the negative root makes no sense in this i don't think. ok now i am going to change my icon since i did not get your seal of approval.

Answer 21

lol

Answer 22

you should blow me away satellite

Answer 23

with your new icon

Answer 24

you can't go wrong with icon that says myininaya is the best!

Answer 25

satellite is that icon one of mondrian's paintings?