A triangle has vertices at (1, 3), (2, -3), and (-1, -1). What is the perimeter of the triangle rounded to the nearest whole number?

What is the probability of rolling a single die greater than 4

What is the area of the shaded sector?

Use the given degree of confidence and sample data to construct a confidence interval for the population mean mu . assume that the population has a normal distribution. a laboratory tested twelve chicken eggs and found that the mean amount of cholesterol was 185 milligrams with sequals 17.6 milligrams. a confidence interval of 173.8 mgless than muless than 196.2 mg is constructed for the true mean cholesterol content of all such eggs. it was assumed that the population has a normal distribution. what confidence level does this interval represent?