Use the 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 4 decimal places. 10.80 Using the differential to approximate the quantity, 10.80 ~ (Round to four decimal places as needed.) Using a calculator to approximate the quantity, 1/0.80 (Round to four decimal places as needed.) The absolute value of the difference in the two results is (Round to four decimal places as needed.)