Answer:
ANSWER is B. look at the sides and simplified.
The exact form is: w = -6/7
The light's coverage area is given mathematically as i.e. Area=
Given that a lighthouse casts a revolving beam of light as far as they peir and asked the area is covered.
The revolving beam of light covers the whole space i.e entirely 360°
I.e. it forms a circle-like region
Area of circle = { where r is the radius of circle}
Let's assume the distance traveled by light as "d"
as it forms a circular region, it forms a circle of radius "d"
Mathematical connection i.e. area of the region
⇒area of circular region= {where d is the radius of region}
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Hello :
y exist : x+6 <span>≥ 0
x </span>≥ -6
The square root of 8 added to the square root of 18 equals 7.07106781187