Step-by-step Answer
PAGE: 744SET: SelectPROBLEM: 51
Please look in your text book for this problem Statement

An underground pipeline is leaking a toxic chemical.

The distance the chemical spreads each year can be defined as .

(a) Graph:

Graph the logistic function for .


Find the function values at and for graph by using tracing or table feature of the

graphing utility in part (a).

Therefore, , and .


Find .

Observe the graph in part(a):

As tends to large positive values, then decreases and close to without bound.



Sum of infinite series is .

Here first term that is distance spread for the first year is and common ratio .

Thus there is no chance of reach the chemical spread to the hospital which meters away from the leak.


(b) , and .

(c) .

(d) No.


"I want to tell you that our students did well on the math exam and showed a marked improvement that, in my estimation, reflected the professional development the faculty received from you. THANK YOU!!!"

June Barnett

"Your site is amazing! It helped me get through Algebra."


"My daughter uses it to supplement her Algebra 1 school work. She finds it very helpful."

Dan Pease

Simply chose a support option

My status

JOIN US ON:     
mathskey.com is not affiliated with any Publisher, Book cover, Title, Author names appear for reference only