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August 23, 2014

August 23, 2014

Posted by **Amanda** on Sunday, October 2, 2011 at 8:43pm.

A =

all real numbers except x = 36

all real numbers except x = 6

0 < x < 6

0 < x < 36

all real numbers

- Pre-Calculus -
**Reiny**, Sunday, October 2, 2011 at 9:47pmI don't see any "figure below" , but I can surmise your figure shows a quarter circle in the first quadrant with a rectangle, whose base is along the x-axis, its height along the y-axis and it touches the quarter circle at (x,y)

Area = xy

= x√(36-x^2) or x(36-x^2)^(1/2)

for the domain, we have to make sure that the number under the √ does not become negative, so

0 < x < 6

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