A fair coin is flipped six times. what is the probability that heads occurs exactly 4 times if it is known that heads occurs at
1 answer:
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Answer:
Shown below
Step-by-step explanation:
First allocate the power of three to every number
=
not sure what you mean by positive exponents, the exponents already are positive. Maybe you mean positive exponents and integers?
Answer:
The amount of acid in third container is =42%
Step-by-step explanation:
Given , one container is filled with a mixture that is 30% acid a second container filled with a mixture that is 50% acid and the second container 50% larger than the first .
Let, the volume of first container is = x
Then , the volume of second container = (x+ x of 50%)
= x + 0.5 x
= 1.5 x
Therefore the amount of acid in first container = 0.3 x
The amount of acid in second container = 0.75x
Total amount of acid= 0.3x + 0.75x = 1.05 x
Total amount of solution = x+1.5x = 2.5x
The amount of acid in third container is = %
= 42%