| x + 4 | = 5
x + 4 = 5 x + 4 = -5
x = 5 - 4 x = -5 - 4
x = 1 x = -9
solution : x = 1 and x = -9
Answer:
Step-by-step explanation
7 then you multiply 19 so then you get your answer and then compare the 10 with it!
Answer:
99.8% probability of at least one failure.
Step-by-step explanation:
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
Probability of success is 30%.
This means that 
Five trials:
This means that 
Find the probability of at least one failure in five trials of a binomial experiment in which the probability of success is 30%.
Less than five sucesses, which is:

In which



0.998*100% = 99.8%
99.8% probability of at least one failure.