Answer: −7g+2
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Plug in a and be into the equations:
The light's coverage area is given mathematically as i.e. Area=![\pi d^{2}](https://tex.z-dn.net/?f=%5Cpi%20d%5E%7B2%7D)
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}
Learn more about area here:
brainly.com/question/27683633
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Answer:
4 hours
Step-by-step explanation:
6.25X4=25 so he'll have an extra dollar
I would start at making it more easy by asking my dad or mom for help