jetblackcap
16.04.2020 •
Mathematics
The value of the discriminant x2 + 6x + 9 = 0
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Ответ:
X=-3
Not sure if you meant finding the ‘x’ but it would be this
Step-by-step explanation:
Ответ:
Step-by-step explanation:
We are given that:
The failure rate = 0.1 failure/year
i.e. =
The repair rate = 365 repair/year, if we convert this to repair/hour; we get:
Time (t) = 1 hour
P(failure) = 1 - R ; if (t=1)
where:
P (failure) = 1 - R
= 1 - 0.9999
= 0.0001
≅ 0
The frequency meantime of failure =
= 100000
The average downtime of repair for the system =
= 25