Question

Check and Help please

Answer 1

With what?

Answer 2

so would these be right and i need help on the last one

Answer 3

Not doing your test

Answer 4

i need you to check the answer not do it thank you @iambatman

Answer 5

They seem correct but I'm not sure how to o the last one. If you want you can first tell me how you think you do it an maybe I could try to help

Answer 6

Well thank you for you help anyways @TinkerbellGirl i just need it to be explained to me while i tell the understanding view of my aspect

Answer 7

Well your last problem deals with compound interest, so you have the formula as I like to put it,

\[P_f=P_i(1+i)^t\]

so let me ask you this, how are you with logarithms?

Answer 8

Oh well your welcome :)

Answer 9

Or really its better if you use\[P_f=P_i*r^t ~~~~ r = (1+i)\]

that seems better, now we need to solve for r yes?

Answer 10

Ok, well first thing first, can you tell me what Pf, pi, t, and i are?

Answer 11

LOGARITHMS: when the base is extended so it shall create a given number

Answer 12

We don't really need logarithms I guess since we have time, hence the "annual."

Answer 13

Would've been fun if we had to solve for time :D

Answer 14

All you need to do is solve for r, do some algebra and see what you get.

Answer 15

well i know pi means 3.14
R means radius
i've learned the rest but seemingly forgotten

Answer 16

There is no pi, I mean \[p_i\] as in initial

Answer 17

\[p_i \] means initial population
\[p_f\] means final population
t = time interval (depends on rate)
r = rate of growth
i = percentage growth rate

Answer 18

ok well i just wrote that down thank you

Answer 19

Np and for that formula I suggested rate of growth is (1+i)

Answer 20

which its actually saying 1+8%

Answer 21

Yes

Answer 22

which would be 1+0.08

Answer 23

so wouldnt this make it 1.08

Answer 24

so yes it would be 1.08%

Answer 25

Mhm ok I see I've confused you a bit, not precisely.

Lets just use the formula you are given I guess, so with what you're given, just solve for r.

Can you do that (isolate r)?

Answer 26

Anyways I'll get back to you later, if you still haven't gotten it, I need sleep, I've been awake for wayyyy to long haha, good night.

Answer 27

which is rate of growth