A forest fire leaves behind an area of grass burned in an expanding circular pattern. If the radius of the circle of burning grass is increasing with time according to the formula r(t) = 4t + 3, express the area A burned as a function of time, t (minutes). A(t) =

A forest fire leaves behind an area of grass burned in an expanding circular pattern. If the radius of the circle of burning grass is increasing with time according to the formula r(t) = 4t + 3, express the area A burned as a function of time, t (minutes). A(t) =

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter3: Functions

Section3.4: Composition Of Functions

Problem 94SE: A forest fire leaves behind an area of grass burned in an expanding circular pattern. If the radius...

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A forest fire leaves behind an area of grass burned in an expanding circular pattern. If the radius of the circle of burning grass is increasing with time according to the formula

r(t) = 4t + 3,

express the area A burned as a function of time, t (minutes).

A(t) =

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