Find the measures of the numbered angles for each parallelogram number 11

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319