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sergij07 [2.7K]
3 years ago
10

The cone of the volcano has a height of 405 meters and a diameter of 438 meters. find the volume of the cone. round your answer

to the nearest hundred thousand. use 3.14 for π
Mathematics
1 answer:
Murljashka [212]3 years ago
7 0
The answer should be 81363900
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Write the equation of a parabola that has a vertex of (-2,5.5) and passes through the point (-2.5,2.5).
vekshin1

The equation of a parabola that has a vertex of (-2, 5.5) and passes through the point (-2.5, 2.5) is  y=-12(x+2)^2+5.5

The vertex form of the equation of a parabola is:

y=a(x-h)^2+k

where (h, k) is the vertex of the parabola

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The vertex, (h, k) = (-2, 5.5)

The point, (x, y) = (-2.5, 2.5)

Substitute h = -2, k = 5.5, x = -2.5, and y = 2.5 into the equation to solve for a.

2.5=a(-2.5-(-2))^2+5.5\\\\2.5=a(-2.5+2)^2+5.5\\\\2.5-5.5=a(-2.5+2)^2\\\\-3=a(-0.5)^2\\\\-3=0.25a\\\\a = \frac{-3}{0.25} \\\\a = -12

Therefore, the equation of the parabola is:

y=-12(x-(-2))^2+5.5\\\\y=-12(x+2)^2+5.5

Learn more here: brainly.com/question/25667732

5 0
3 years ago
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