1 year ago

10 Find the standard equation of the circle having the given center and radius.

1 answer:

8 0

the standard equation of the circle having the given center and radius is $(x-9)^2+(y-2)^2=\frac{9}{25}$ .

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Dmitry [639]

Answer:

Step-by-step explanation:

Chords within a circle are proportional. Proportional means that they form equal ratios. To solve for y, set up a proportion.

The ratios we will create will be $\frac{long}{short} =\frac{long}{short}$ where each long and short form an angle.

So write:

$\frac{12}{8} =\frac{y}{4}$

To solve, cross multiply numerator with denominator.

12(4) = 8(y)

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