Answer:
It’s C
Step-by-step explanation:
Answer:
-3
Step-by-step explanation:
Since you are subtracting a negative, it turns positive so it will be.
-4+1
-3
Answer:
Step-by-step explanation:
Given
--- rate of hard disk drives failure
--- number of hard disk drives
<em>See comment for complete question</em>
Required
First, calculate the probability that the none of the 4 selected is working;
Using the complement rule, the probability that at least 1 is working is:
This gives:
Answer:
6x+7y=14
Step-by-step explanation:
this may be wrong
but i tried