Question 1172753
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{{{V = (pi)(r^2)(h)}}}<br>
When the radius in increased by 50%, the radius is changed by a factor of 1.5.<br>
When the height is reduced by 25%, the height is changed by a factor of 0.75.<br>
So the volume is changed by a factor of<br>
{{{(1.5^2)(0.75) = ((3/2)^2)(3/4) = 27/16}}}<br>
The constant of variation is obviously pi....<br>