Your Teacher is wondering if the absolute value of a number can ever be negative. Is she correct? Why or Why not? Use specific examples and sound mathematical reasoning to support your answer

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

You work in a hospital that has 9 floors. you need to see 3 patients on each floor. how many patients do you need to see in all?

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?