The country of freedonia has decided to reduce it's carbon dioxide emission by 35%each year. This year the country emitted 40million tons of carbon dioxide. Write a function that gives Freedonias carbon dioxide emissions in million tons, E(t),t years from today

E(t)=40(0.65)^t

Step-by-step explanation:

100%-35%=65%

so each year it gets multiples by 65% orr 0.65

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."