Answer:
hold on im working on it
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
The number of variables in the problem is 3
Answer:
Step-by-step explanation:
Given the equation 
Step 1;
Expand the bracket at the right hand side of the equation to have:

Taking the reciprocal of both sides:

Answer:0.565
Step-by-step explanation:
Hat contain 100 coins out of which 99 is fair and one is double headed.
Probability of getting 7 heads is sum of Head through fair coin+heads through biased coin
Probability of getting a head through a fair coin=0.5



