<PRE><B>Question 169864</B>
Area of a sail. The area in square meters for a triangular sail is given by A(x) = x^2 + 5x + 6. 
a) Find A(5).
A(5) = 5^2 + 5*5 + 6 = 56 m^2
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b) If the height of the sail is x + 3 meters, then what is
the length of the base of the sail? 
Area = (1/2)base*height
A = (1/2)b*(x+3)
2A = b(x+3)
base = 2A/(x+3)
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Cheers,
Stan H.
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