show all work. 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?

Question

anonymous · Answer

Round to the nearest thousandth.

amistre64 · Answer

area of bullseye/ area of dartboard

anonymous · Answer

bullseye is 3 inches and radius is 11

amistre64 · Answer

area of a circle:  pi r^2

pi 3^2
------ = probability
pi 11^2

anonymous · Answer

i have to find my calculator.. not sure where my kid put it.. lol brb

amistre64 · Answer

check the washing machine :)

anonymous · Answer

9/121

anonymous · Answer

A certain drawing states that the odds of winning are 326:131. What would be the odds against winning?

anonymous · Answer

what is this 'rounding" motif?  what is wrong with 
$$\frac{9}{121}$$?