3 years ago

URGENT PLEASE HELP Picture attached

Mathematics

1 answer:

solong [7]3 years ago

3 0

Answer:

A) ∠AOB = 36°

Step-by-step explanation:

The full circle area = 10²π or 100π

the shaded portion is (10π/100π)(360°) = 36°

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The dish illustrates operations on a parabola.

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The bowl is said to be a parabola.

So, we have:

$\mathbf{(x -h)^2 = 4p(y - k)}$

Where:

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$\mathbf{Vertex:(h,k) = (0,0)}$

From the question, the diameter is 160 feet.

So, the radius (r) is:

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Substitute these values in $\mathbf{(x -h)^2 = 4p(y - k)}$

So, we have:

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$\mathbf{160 = y}$

Rewrite as:

$\mathbf{y = 160 }$

Hence, the depth of the parabolish dish is 160 feet.

Read more about parabolas at:

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