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## Homework Statement

If the maximum allowable width, w, of the wall is 100 cm, what are the domain and rand of the function? Remember to include units for both the domain and range.

## Homework Equations

w(d)=2d

w(d)=100, so

100=2d, there fore

d=100/2

## The Attempt at a Solution

Domain: d (less than or equal to) 50cm

Range: all real numbers

Sorry, I'm a bit rusty on finding D and R. Thanks for the help, here is the original question via PDF, I got part (a). I am just unsure about my D and R ( I am a perfectionist)

ALSO: For part (a) I got : A(d)=((Pi)(d^2))/2, correct?

THANK YOU VERY MUCH.