I need help with figuring out the following questions please. I need these done asap please!

9.5.13 Use the total differential to approximate the quantity. Then use a calculator to approximate the quantity, and give the absolute value of the difference in the two results to four decimal places. 4.92 In 0.98 Approximate the quantity using the total differential. 4.92 In 0.98 z (Type an integer or a decimal. Do not round until the nal answer. Then round to four decimal places as needed..) Bus Econ 9.5.15 Approximate the volume of aluminum needed for a beverage can of radius 2.5 cm and height 11 cm. Assume the walls of the can are 0.06 cm thick. The volume of aluminum needed is '1 cm3. (Round to the nearest hundredth as needed.) Bus Econ 9.5.17 An industrial coating 0.2 cm thick is applied to all sides of a box of dimensions 8 cm by 3 cm by 6 cm. Estimate the volume of the coating used. The volume of the coating is approximately |:| cm3. (Type an integer or a decimal.) Life Sci 9.5.21 A piece of bone in the shape of a right circular cylinder is 6 cm long and has a radius of 2.3 cm. It is coated with a layer of preservative 0.09 cm thick. Estimate the volume of preservative used. The volume of the ooating is approximately cma. (Do not round until the nal answer. Then round to three decimal places as needed.) Gen Interest 9.5.31 35 Questien Help The height of a triangle is measured as 293 cm, with the base measured as 11.2 cm. The measurement of the height can be off by as much as 0.2 cm, and that of the base by no more than 1.5 cm. Estimate the maximum possible error in calculating the area of the triangle. Thus, the maximum possible enor in calculating the area of the triangle is approximately cm . 9.4.5 Find the relative minimum value of f(x,y) = x2 + 4y2 - 4xy, subject to the constraint x + y = 6. The relative maximum value is f 0:\":D = D. (Simplify your answers.)