108 divided by 9 using distributive property
2 answers:
You might be interested in
Answer:
Step-by-step explanation:
The range is the spread of the y-values (minimum to maximum distance travelled).
The graph of your function is a hyperbola shifted two units left and three units up from the origin.
There is a vertical asymptote at x = -2, so y does not exist when x = -2. However,
Since the limit from either side is the same,
The graph below shows the asymptotes of your function.
Thus. y can take any value except 3.
In set builder notation, the range is
Answer:
The probability of finding a sample mean less than 18 hours is 0.0082
Step-by-step explanation:
To find the probability of finding a sample mean less than 18 hours, we need to calculate the z-score of this sample mean 18. And the probability of finding a sample mean less than 18 hours is P(z<z(18)).
Z-score can be calculated as follows:
z(18)= where
- X is the sample mean (18 hours)
- M is the average hours dentists spend per week on fillings (20 hours)
- s is the standard deviation (10 hours)
- N is the sample size (144)
Putting the numbers, we get:
z(18)=
Using z- table we can find that P(z<z(18)) = 0.0082