The mug cost $12 as it is, so first you subtract 12 from 34, which is 22. From there, you divide 22 by 2.20, which would be 10. Therefore, she can get a mug and 10 refills for $34.
Answer:
domain is (-∞,∞)
Step-by-step explanation:
to find f+g(x) we add both function
Substitute f(x) and g(x)
Domain is the set of x values
here there is no restriction for x
so domain is the set of all real numbers
domain is (-∞,∞)
Answer:
There will be 120 gallons in the pool after 5 minutes.
20*5=100
100 and 120 are reasonably close
Step-by-step explanation:
Answer:
B. No. There is not a fixed number of trials
Step-by-step explanation:
Binomial random variable:
Can only have two outcomes(yes/no questions).
Each trial must be independent, that is, the probability of a success is always the same in a trial, and the number of trials is fixed.
It's probabilities must be between 0 and 1.
Is the number of passengers who pass through security in this time a binomial random variable?
For each person, there are only two possible outcomes. Either they are screened, or not. However, we don't want to know the number of people screened, which is binomial, we want to know the number of people until 10 are screened, which is inverse binomial. So, since there is not a fixed number of trials, this is not binomial, and the answer is given by option B.
