Answer:
Always
Step-by-step explanation:
Every square is a closed figure, and every square has 4 straight sides, so every square is a quadrilateral.
None parallel means they are the same but are side by side, they don't touch or meet
Answer:
The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
Of the 2809 people who responded to survey, 1634 stated that they currently use social media.
This means that 
98% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).
Divide by 12 BC it really be like that sometimes
False, vertical angles are not next to each other but opposite of each other