SOLUTION: The head of a circular drum has an area of 9x^2pi +12xpi+4pi. a) What is the radius of the drum in terms of x? b) If x=9, what is the radius length?

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Question 1061310: The head of a circular drum has an area of 9x^2pi +12xpi+4pi.
a) What is the radius of the drum in terms of x?

b) If x=9, what is the radius length?


Answer by ikleyn(52798)   (Show Source): You can put this solution on YOUR website!
.
The head of a circular drum has an area of 9x^2pi +12xpi+4pi.
a) What is the radius of the drum in terms of x?

b) If x=9, what is the radius length?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 

The radius is  =  = |3x+2|.


If x= 9, then the radius is 3*9+2 = 27+2 = 29 units.


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