Which if the following is teue regarding the solutions to the logarithmic equation below? a. x=9 and x=-9 are teue solutions. b. x=9 and x=-9 are extraneous solutions. c. x=9 is an extraneous solution andd x=-9 is a true solution. d. xx=9 is a teue solution and x=-9 is an extraneous solution

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?