On January 1st 2014 there were approximately 10,200 tons of garbage in the Chicago river the river will be officially marked as environmentally safe when there are less than 5,200 tons of garbage each year since then clean up efforts have been able to remove 350 tons of garbage if t represents the number of years since January 1st 2014 which of the following inequalities can be used to determine when Chicago river is environmentally safe?

answer: i'm not sure

step-by-step explanation:

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

cretdit to source

c

step-by-step explanation:

$649.60

step-by-step explanation: