How can you maximize your happiness under a budget? When does a function reach its minimum value? When does a curve change direction? The calculus of extrema explains these "extreme" situations.

Police officer Parker arrived in his Chevrolet Impala police cruiser, with a court order to capture Benito the Bandit. He is a single officer, and is unable to drive (or swim, or fly) over the lake. He figures that the best way to capture Benito is to always drive towards the point on the shore which is closest to Benito.

What is the minimum integer speed at which Officer Parker would have to be able to drive, in order **to be certain of** catching Benito right when Benito reaches the shore?

If the maximum is \(S\), then enter \(\lceil 1000*S \rceil\) as your answer.

What is the minimum value that the expression

\[\dfrac{x^2y^2 - 2 x^2y +2x^2 +2xy-2x+1}{x^2y + x}\]

when \(x,y \in \mathbb{R^+}\), can attain? Express your answer to four decimal places.

\[ \dfrac { a\sqrt { a } -b }{ c\sqrt { d } }\]

where \( a\) and \( d\) are prime numbers. What is the sum \(a+b+c+d?\)

(Don't count \( a\) twice)

If \(x^2+y^2=3,\) then what is the maximum value of

\[(3x+10y)^2+(8x+11y)^2?\]

Round your answer to the nearest thousandth.

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