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.
Hello
You divide 8 by 7/8 you get <span><span>
9 1/7
Hope we helped<span /></span></span>
Answer:
Correct answers:
A. An angle that measures radians also measures
C. An angle that measures also measures radians
Step-by-step explanation:
Recall the formula to transform radians to degrees and vice-versa:
Therefore we can investigate each of the statements, and find that when we have a radians angle, then its degree formula becomes:
also when an angle measures , its radian measure is:
The other relationships are not true as per the conversion formulas
54:84___(÷2)
27:42___(÷3)
9:14