Solve
-The Effective Yield from a Grove of Miniature Pear $\mathrm { E } = x ( 800 - x )$

question 51

Multiple Choice

Solve.
-The effective yield from a grove of miniature pear trees is described by the equation $\mathrm { E } = x ( 800 - x )$ , where $x$ is the number of pear trees per acre. What is the maximum effective yield? How many pear trees per acre should be planted to achieve the maximum yield?

• A) Maximum yield \(= 160,000\)
• number of trees per acre planted \(= 800\)
• B) Maximum yield \(= 160,000\)
• number of trees per acre planted \(= 400\)
• C) Maximum yield \(= 160,000\)
• number of trees per acre planted \(= 200\)
• D) Maximum yield \(= 40,000\)
• number of trees per acre planted \(= 200\)

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