Answer:
Hi there!
The correct answer is: 
Step-by-step explanation:
First of all I want to clarify I used to the fourth identity to solve this problem.
The fourth identity is: 
Answer:
The answer for the question is 11 and 12 I just got a test back and it was correct
Step-by-step explanation:
Answer:
Option D) s = 1
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 69
X = 68
Formula:

Computing z-scores for different standard deviation:

The standard deviation with highest z-score gives the most extreme position in the distribution.
Thus, the most extreme position of X = 68 in the distribution is given by a standard deviation of 1.
Option D) s = 1
Answer: 250 miles
Step-by-step explanation:
I am not sure what grade level you are, but this is how it is done in college.
I hope it can give you an idea and be of some help.
First you have to convert 150 minutes to hours. Then you multiply your new hours to 100 miles.
150 minutes x <u> 1 hour </u> x<u> 100 miles </u>= 250 miles
60 mins. 1 hour