Which number produces a rational number when added to 1/3

The radius of a sphere is 3 inches. which represents the volume of the sphere?

What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°

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?