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\centerline{\bf Math.~125 Quizz \#10}
\centerline{November 24, 1998}
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\noindent {\bf 1.} 
The solid lies above the $xy$-plane, between the lines $x=0$ and
$x=4$. Each slice perpendicular to the $x$-axis is a square, one edge
of which is a line segment stretching between the curves $y=x$ and
$y=x^2$.

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