One number is four times another number. The sum of their reciprocals is 1/4 . What are the numbers?
1 answer:
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Given the center and the radius
of a circle, its equation is
In your case, the center is (-4,0), and the radius is 2. Plug these values into the generic formula and you'll get the equation.
Answer:
Step-by-step explanation:
Let A and B events. We have defined the probabilities for some events:
Where A' represent the complement for the event A
The complement rule is a theorem that provides a connection between the probability of an event and the probability of the complement of the event. Lat A the event of interest and A' the complement. The rule is defined by:
So for this case we can solve for P(A) like this:
And now we can find using the total probability rul given by:
And if we replace the values given we got:
And that would be the final answer.