The amount of a pollutant (measured as parts per million) in a local lake can be modeled by the function of A (t) = 14(2.71)^-016-4, where t is the
number of years since a government program was began to help clean up
the lake. About how long will it take for the amount of pollutant to reach 7
parts per million?

O 7.85 years
O 43.45 years
O 83.51 years
O 12.52 years

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

answer:

a=9

step-by-step explanation: lmk if you need a explanation

vertical asymptote .

horizontal asymptote .

step-by-step explanation:

given function is .

vertical asymptote is given by setting

denominator =0

when degree of numerator and denominator are same then divide first term of numerator by first term of denominator to get horizontal asymptote.