You have the -1 correct but when (or if) you put it in the calculator then you have to put it in parentheses and you should get 5 so it would be (-1,5)
So it's 2.5 inches, so it would be 15 miles, because 6+6+3=15.
Answer:
The coordinates of point B are : (-1, 1)
Step-by-step explanation:
You multiply -4 by 2 which gives you -8 then you multiply 1 by 2 which gives 2.
Then you create the equations 
you substitute -7 for +7 and add 7 to -8 which gives -1 (
) and subtract 1 from 2 which gives you 1 (
)
To check your answer use the midpoint formula 
which gives you your midpoint (-4,1)
Answer:8.5
Step-by-step explanation: you divide 85 by ten and you will get your answer
Answer:
CV = coefficient of variation = 0.761
Step-by-step explanation:
The coefficient of variation is defined as the standard deviation divided by the mean of a population, which in this case,
standard deviation = 15.6
mean = 20.5
CV = coefficient of variation = 15.6/20.5 = 0.761
Note that if the 16 values form a sample (i.e. not the entire population), the above result is an estimate of the CV.
