Dichloro is a pesticide that was used in the middle decades of the 20th century to control maleria. Afterr 1945, it was also widely used on crops in the U, and as much as one ton be sprayed on a single cotton field. Hoowever after the toxic, effects of Dichloro on the evvironment began to appear, the chemical was banned in 1972. A common estimate for the half-life in the soil is 15 years. Write a decay law for Dichloro in the soil and use A for the initial concentration of Dicloro, and use t for the input variable

- toxicsugar22

- schrodinger

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- dumbcow

\[y=Ae ^{-\frac{\ln 2}{15}t}\]
is that not correct?

- toxicsugar22

no i dont think so do u know if that is corecct

- toxicsugar22

\[Ae^-In2/15^t\]

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## More answers

- dumbcow

well i know that will yield 1/2A after 15 years, if thats what the question is asking

- toxicsugar22

\[y=Ae^(In2/15^t)\]

- dumbcow

um the exponent on the e is -ln(2)/15 times t

- toxicsugar22

\[y=Ae^(-In2/15^t)\]

- toxicsugar22

i can to do it

- toxicsugar22

hw do I cut and copy what u did, i mean the equation

- toxicsugar22

or copy and paste

- dumbcow

copy and paste into word then highlight exponent part and superscript it

- toxicsugar22

no it didnt work

- toxicsugar22

can u send it to me on here?

- toxicsugar22

y=Ae ^{-\frac{\ln 2}{15}t}

- toxicsugar22

how do u type this equation

- toxicsugar22

idk

- dumbcow

can you insert equations in word, it works just like the equation editor on here

- dumbcow

you might have to have word 07

- toxicsugar22

ok

- dumbcow

go to insert tab and click on equations

- toxicsugar22

where that

- toxicsugar22

like how did u do your equation

- toxicsugar22

can u tell me

- toxicsugar22

because when i do it it turns out wrong

- toxicsugar22

and can u hurry up please

- dumbcow

##### 1 Attachment

- toxicsugar22

ok i opened it and it wont let me copy and paste, it just show a maginify glass and i dk how to make it go away

- toxicsugar22

do u have any idea

- dumbcow

click on it to zoom in
no you cant copy but thats to give you an idea of how to put it into word yourself

- dumbcow

look on far upper right
it has pi symbol and Equation, if you have that click on it and you enter that exact equation

- toxicsugar22

but ii keeps showing me a maginer and it wont go away

- toxicsugar22

how do i get rid of it

- toxicsugar22

does that happen to you

- dumbcow

yes its for zooming in/out
you cant click on anything i just gave you a picture of my screen with word
open word on your computer and find same screen click on equations

- toxicsugar22

THANKS

- dumbcow

welcome

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