Answer:
Answer
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InesWalston
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Answer with Step-by-step explanation:
For a given Binomial event with probability of success 'p' the probabolity of 'r' success in 'n' trails is given by
Thus for given 4 trails (n = 4) we have
Part 1)
Probability of 1 success is
Part 2)
Probability of 2 successes
Part 3)
Probability of at least 1 success
Step-by-step explanation:
Let x be total hours of battery life. We have been given that battery life of Vera's phone is down to 2/5. So remaining battery life,
We have been also given that it drains another 1/9 every other hour. Now let us substitute our given information into an equation.
Now we will solve for x.
Let us convert 2/5 into minutes. We know 1 hour has 60 minutes.
Therefore, remaining battery life will be 5 hours and 24 minutes.
Answer:
The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol. See: Variable.
Step-by-step explanation:
ummm do you know how to say it in englishh,imight be able to halpo if you dooo
