Which expression is equivalent to V20x16y25 for positive x and y values? A 2x®y 5y
B 2x4y 15
© 5x8y12 2y
D 5x^y' V2

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

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?