Solve the equation 3(x + 4.5) = 36. If you get stuck, use the diagram.
1 answer:
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Answer:
Step-by-step explanation:
We essentially need to solve for l; in other words, we must isolate it to one side.
First, notice that the term doesn't have any l terms in it, so we can just move this to the left side by subtracting both sides by
:
A - = 2lw
Now, the right side has 2lw, so we must divide both sides by 2w to isolate l:
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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: