Question 1076372
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The area of a circle is given by *[tex \Large A\ =\ \pi r^2]


Since your radius is *[tex \Large 48(t)], your area must be


*[tex \LARGE \ \ \ \ \ \ \ \ \ \  A\ =\ \pi\left(48t\right)^2]


You can simplify as required.


To find the area at 8 hours, erase the *[tex \Large t] and replace it with an 8.  Then do the indicated arithmetic.  Since the radius was given in feet and during the calculation of the Area you squared the radius, the answer must be expressed in square feet.  Your answer should be more than 450,000 square feet and less than 500,000 square feet.



John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  

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