Answer:

Step-by-step explanation:
Given



Required
Determine 
From laws of probabilities:

In this case:



Answer: the 1 with 6cm the area is 113.1 and the one with 11ft is 380.2
Step-by-step explanation: use this formula A=πr2
Answer:
Step-by-step explanation:
1. no sol
2. infi
3.no sol
4. one sol
Answer:
im not understanding your question.
Step-by-step explanation: