Two identical number cubes are shown in the picture. the edge length of these number cubes is 3 centimeters. what is the combined volume of the two number cubes in cubic centimeters? a 54cm3 b 18cm3 c 9cm3 d 27cm3

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

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?