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bekas [8.4K]
3 years ago
5

Help with this question, please!!

Mathematics
1 answer:
Marat540 [252]3 years ago
5 0

Answer:

\large\boxed{C=22\pi y\ ft}

Step-by-step explanation:

The formula of an area of a circle:

A=\pi r^2

r - radius

The formula of a circumference of a circle:

C=2\pi r

We have the area of a circle

A=121y^2\pi ft^2

Substitute to the formula and solve for r:

\pi r^2=121y^2\pi            <em>divide both sides by π</em>

r^2=121y^2\to r=\sqrt{121y^2}\\\\r=11y\ ft

Put the value of r to the formula of a circumference:

C=2\pi(11y)=22y\pi ft

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Given:

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Solution:

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Step-by-step explanation:

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Event A is defined as drawing a white ball on the first draw.

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