It rained on 2/3 of 21 days jere spent on vacation last summer on how many days did it rain during jere vacation
2 answers:
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Answer:
Step-by-step explanation:
Given
--- domain
Required
Determine the range
To do this, we simply substitute the values of n in the given expression
So, we have:
Hence, the range is:
You may recall that you can't take the square root of a negative number (if you want a real number). So, the area under the square root, also known as the radicand, must be zero or positive. This is how we restrict the domain.
We write the inequality
.
B
We write the inequality
B
Answer:
Step-by-step explanation:
Given
--- rate of hard disk drives failure
--- number of hard disk drives
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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: