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The circle below is centered at (-3, 2) and has a radius of 3. What is its

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1 answer:

Levart [38]3 years ago

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Answer:

Step-by-step explanation:

The equation is (x-a)^2 + (y-b)^2 = r^2

(x+3)^2+(y-2)^2 = 9

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An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 22 feet up. The

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The ladder and the outside wall form a right triangle

The length of the ladder is 97.8 feet

<h3>How to determine the length of the ladder?</h3>

The given parameters are:

Distance (B) = 22 feet

Angle of elevation (θ) = 77 degrees

The length (L) of the ladder is calculated using the following cosine ratio

cos(θ) = B/L

So, we have:

cos(77) = 22/L

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L = 22/cos(77)

Evaluate the product

L = 97.8

Hence, the length of the ladder is 97.8 feet