Answer: 
Step-by-step explanation:
Given
Inside radius of figure 
Outside radius of figure 
Area of outside region is 
Area of inside region 
Area of shaded region 
Probability that point lies inside the shaded region is

0.7777777778
don't you have calculators or internet, you could easily find your question on internet
Answer:
-1/2
Step-by-step explanation:
Answer:
hmm, imma have to do the problem
Step-by-step explanation: