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




Answer:
5400
Step-by-step explanation:
2400+3000
12x²-9x = 0
3x(4x-3)=0
4x-3=0
4x=3
x=3/4
so either x = 0 or x = 3/4
Answer:
I'd say that a is 6 2/3 units long
Step-by-step explanation: