The number of dogs Corey can wash varies directly with the amount of time he spends washing dogs. Corey can wash 12 dogs in 2 ho
2 answers:
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x = -4 is not undefined because f(x) = x+4 is in the top part, the numerator, not the denominator. So the value that makes f(x) = x + 4 zero does not result in a division by zero.
Indeed, if we try to evaluate (f/g)(-4), then we get
which does not involve a division by zero.
However, attempting to evaluate (f/g)(3) leads us to
which involves a division by zero, and divisions by zero are undefined
Answer:
The standard deviation of the sample mean differences is _5.23_
Step-by-step explanation:
We have a sample of a population A and a sample of a population B.
For the sample of population A, the standard deviation is
The sample size is:
.
For the sample of population B, the standard deviation is
The sample size is:
.
Then the standard deviation for the difference of means has the following form:
Finally