Hey there! I'm happy to help!
To find the x-value of the midpoint, you add the x values and divide by 2.
6+10=16
16/2=8
And for the y value, you do the same thing but with the y values.
-10+7=-3
-3/2=-3/2
Therefore, our midpoint is (8,-3/2).
Have a wonderful day! :D
Answer:
D. Infinitely many solutions
Step-by-step explanation:
The equation simplifies to ...
2h -16 -h = h -16
h -16 = h -16 . . . . . . a "tautology", true for all values of h.
There are infinitely many solutions.
Answer:
The minimum number of cities we need to contact is 96.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence interval 
, we have the following confidence interval of proportions.
In which
Z is the zscore that has a pvalue of 
.
The margin of error is:
95% confidence interval
So 
, z is the value of Z that has a pvalue of 
, so 
.
In this problem, we have that:
The minimum number of cities we need to contact is 96.
