Question

Please help me!

Answer 1

gyazo.com/d98ceef8d729bea9e88803f788caaab7 question in link

Answer 2

what are the relevant equations?

Answer 3

im not suree..

Answer 4

Sorry can't help...my school has that link blocked.....

Answer 5

okay it looks like we only need the given equation

Answer 6

so when they ask for the initial amount, what do you think they mean?

Answer 7

The amount of grams they start off with

Answer 8

right so that means the amount present at t=0 right?

Answer 9

okay

Answer 10

so what can we do to see what the amount is at t=0

Answer 11

ummm.. set the equation equal to 0? idk :c

Answer 12

well at t=0,

\[A(0)=4300\times(\frac{1}{2})^\frac{0}{14}\]

Answer 13

the t in the equation is set to 0

Answer 14

does that make sense?

Answer 15

okay then do i solve it ??

Answer 16

well if you set t=0 like I did above, then you have your answer.

What is any number raised to the 0

Answer 17

the same

Answer 18

but it wants to know after 60 years also

Answer 19

no any number raised to 0 is 1

\[n^0=1\]

Answer 20

so A(0)=4300(1/2)^0
A(0)=4300(1)

Answer 21

does that make sense?

Answer 22

okay so my inital amount is 4300 then?

Answer 23

yes

Answer 24

no for the time 60 years later what do you do?

Answer 25

mulitply it

Answer 26

@Thefaceless

Answer 27

okay let me ask you this: what is the variable in the equation?

Answer 28

3400^60

Answer 29

4300^60 orry

Answer 30

the t in the equation represents your time, so if you want to see what amount you will have after a certain time you plug it into the t and see what you get

Answer 31

idk im not getting the right answeer

Answer 32

i ended up with a fraction

Answer 33

what was your answer

Answer 34

a=210/3*2^30/7

Answer 35

did you plug in 60 into the t?

you should have something like

A(60)=4300)(1/2)^(60/14)

Answer 36

thats exactly what i did.

Answer 37

then you should get the right answer

Answer 38

what was the exact answer you got

Answer 39

what i typed above

Answer 40

er I mean your approximate answer

Answer 41

did you punch all those numbers into a calculator?

Answer 42

yea

Answer 43

i give up :p

Answer 44

what was the answer you got

Answer 45

it as 220 i got it

Answer 46

that's what I am getting as well