1.The rectangular region R shown in the accompanying figure
represents a city's financial district. The price of land in the district
is approximated by the function
p(x, y) = 200 - 10(x -
)² - 15(y - 1)²
where p(x, y) is the price of land at the point (x, y) in
dollars/square foot and x and y are measured in miles. What is the
average price of land per square foot in the district? (15%)
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