Wednesday
July 23, 2014

Homework Help: precalc

Posted by Anonymous on Friday, August 27, 2010 at 12:13am.

According to an article by Thomas H. McMahon in the July 1975 issue of Scientific American, a tree’s height varies directly with the radius of the base of its trunk. He expressed this relation using the formula h = kr^2/3 where k is a constant, h is the tree’s height, and r is the tree’s radius.

Now suppose you own a stand of trees whose pulp can be used for making paper. The amount of wood pulp you can produce from a tree increases as the tree’s volume increases. The model approximates a tree without its branches as a right circular cone. The formula for the volume of the tree then becomes V = (1/3)πr^2h.

Substituting the formula for height of a tree in the formula for volume of a tree, the new formula for volume becomes

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

MLA format English - . An article accessed through a library data base by May ...
math - t varies directly as the square root of l. If l=81, then t=10 what is the...
algebra1 - M varies directly with n; m=144 when n=8. What is the constant of ...
Math - The time needed to empty a vertical cylindrical tank varies directly as ...
Math - DIRECT VARIATION 1. a is directly proportional to b.If a=15,then b=9 2. m...
Variation - I have few questions that I need checked please and could you help ...
precalc - in many parts of the coutry the average temp of a particular area may ...
business law - 5. Why is long arm jurisdiction an issue for those who create or ...
Math - The volume of a cylinder is given by formula V= pi(3.14) r^2h where r is ...
math - Two right circular cone, one upside down in the other. The two bases are ...

Search
Members