Provide a combination of two shapes that would tile a flat surface

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

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?

The function below is written in vertex form or intercept form. rewrite them in standard form and show your work. y = (x+4)(x+3)