Find the indicated function.A parking lot measures 160 by 210 feet including a sidewalk of uniform width around its perimeter. Let x represent the width of the sidewalk. What is a function to represent the area of the sidewalk?
A. A(x) = x(3 + (160 - x))
B. A(x) = x(420 + 2(160 - 2x))
C. A(x) = x(420 + 2(2x - 160))
D. A(x) = x(420 + 2(160 - x))
Answer: B
Mathematics
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