SOLUTION: A simple dartboard has three areas… the main board has a radius of 11 inches, there is a circle with a radius of 5 inches, and the bullseye has a radius of 3 inches. What is the pr

Algebra ->  Probability-and-statistics -> SOLUTION: A simple dartboard has three areas… the main board has a radius of 11 inches, there is a circle with a radius of 5 inches, and the bullseye has a radius of 3 inches. What is the pr      Log On


   



Question 488432: A simple dartboard has three areas… the main board has a radius of 11 inches, there is a circle with a radius of 5 inches, and the bullseye has a radius of 3 inches. What is the probability of a random dart landing inside the bullseye?
Round to the nearest thousandth. (Hint: Use A = π r²)
Could I have some help?
Dartboard picture:
http://www.flickr.com/photos/62474130@N03/6097296358/

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A simple dartboard has three areas… the main board has a radius of 11 inches, there is a circle with a radius of 5 inches, and the bullseye has a radius of 3 inches. What is the probability of a random dart landing inside the bullseye?
Round to the nearest thousandth. (Hint: Use A = π r²)
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Area of bullseye = (pi)*3^2
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Area of board = (pi)*11^2
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P(land in bullseye) = [(pi)*9]/[(pi)*121] = 9/121 = 0.074
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Cheers,
Stan H.