The formula for the volume of a cone is V=(1/3)πr^2h. Plugging in what you know, you get (1/18)π=(1/3)π(1/3)^2(h). The radius is half the diameter 2/3 so it is 1/3. Simplifying, you get (1/18)π=(1/3)π(1/9)(h) which is (1/18)π=(1/27)π(h). Dividing both sides by (1/27)π, you get h=1.5ft.
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-3x from both sides so it looks like 2x=20 and divide by 2 and x=10
Not that hard look in between b and d
, it is important to recognize that the point (x,y) in the first quadrant represents any
point on the semicircle. In Figure 2, the same semicircle is shown with the inscribed rectangle drawn for
three different values of x.