Appliances unlimited (au) sells refrigerators. any refrigerator that fails before it is three years old is replaced for free. of all refrigerators, 2% fail during their first year of operation; 4% of all one-year-old refrigerators fail during their second year of operation; and 6% of all two-year-old refrigerators fail during their third year of operation. a. use simulation to estimate the fraction of all refrigerators that will have to be replaced. b. it costs $750 to replace a refrigerator, and au sells 15,000 refrigerators per year. if the warranty period were reduced to two years, how much per year in replacement costs would be saved?

Find the area and perimeter of each composite figure. use 3.14 for π. round your answer to the nearest tenth. a square and a right triangle share a common side. image long description a 3-meter by 0.5-meter rectangle has triangles attached like wings to the 3-meter sides. the other two sides of both triangles measure 2.5 meters. the height of each triangle is 2 meters. a 6-inch by 4-inch rectangle has 2 half-circles attached like wings to the 6-inch sides. the radius of each half-circle is 3 inches. find the surface area and volume of each figure. use 3.14 for π. round your answer to the nearest tenth. a right circular cylinder has a base radius of 6 yards and a height of 20 yards. a rectangular prism has a base that is 9 centimeters long and 7 centimeters wide. the height is 2 centimeters. a rectangular prism has a base that measures 11 millimeters by 11 millimeters. the height is 11 millimeters.

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

Which of the following is the graph of y= square root -x-3