Question

NEED HELP ON ALGEBRA! will fan and medal :)

Answer 1

So here's the question

Answer 2

@Hero :) @nincompoop :) @whpalmer4 :)

Answer 3

@.Sam.

Answer 4

I'm not quite sure how you're supposed to put in the answer, since before the answer box they have A =, but we can still work it out together :)

Answer 5

@.Sam.

Answer 6

Okay, I'm back! :)

Answer 7

Alright!

Answer 8

Okay, so do you know Newton's 3rd law? For every action, there is an opposite and equal reaction?

Answer 9

Yep :)

Answer 10

Awesome! That's kind of what we have to do here, except using math. So if we add on one side, what will we do to get that addition to the other side of the equation?

Answer 11

Rationalize? I dont know :(

Answer 12

"\(\bf opposite\) and equal reaction"

Answer 13

Whaaaaat?

Answer 14

Please help me :( @sleepyjess

Answer 15

What is the opposite of addition?

Answer 16

Subtraction?

Answer 17

Yes!

Answer 18

Now, for this equation, we want to isolate \(p*i\), so to do that, we need to do what to the part that is being \(\bf divided\)

Answer 19

bf?

Answer 20

Not common to these terms.. sorry

Answer 21

Opposite of division?

Answer 22

I feel like I'm not making much sense :/

Answer 23

@whpalmer4 ?

Answer 24

You are making sense, just narrow down and use simple words so I can understand

Answer 25

English's not my mother tongue, so please forgive me

Answer 26

@sleepyjess you there

Answer 27

@nincompoop

Answer 28

\[1-\frac{ 1 }{ (1+i)^n}\]

lets look at just the denominator first
now lets get a common denominator
the first term 1 is just
\[\frac{ (1+i)^n }{ (1+i)^n }\]

so together
\[\frac{ (1+i)^n }{ (1+i)^n }-\frac{ 1 }{ (1+i)^n}\] or

\[\frac{ (1+i)^n -1 }{ (1+i)^n }\]

now when you multiply p*i by \[(1+i)^n \]
in the denominator it cancels and we are left with

\[A= \frac{ (p*i)(1+i)^n }{ (1+i)^n -1}\]

Answer 29

lol i thought it meant pi as in the number pi :)

Answer 30

Haha nah.

Answer 31

@ganeshie8 @nincompoop Hey guys help me to close this question :)

Answer 32

@sleepyjess the A in the front is just the label it is what you are finding

Answer 33

@MapuwanEstudent where are you stuck? @zpupster did the problem above. (I did not verify)

Answer 34

Im not sure its the correct answer...