Solve for X and Y.
37x+43y
=123
43x+37y=117

Which of the following represents the range of the graph of f(x) below

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

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?