The base edge of a regular triangular pyramid is b=10 cm and the height of the base is hb ≈ 8.66 cm. The slant height of the pyramid is k=8 cm. Find: Surface area of the pyramid

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?

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?

Factor this polynomial completely. x^2-8x+12