aubreylb04 aubreylb04 06-04-2024 Business contestada on july 1, a machine with a useful life of 10000 hours and a residual value of 2000 was purchased for 18000. what is depreciation expense in the first year of purchase if the machine is used 1800 hours a. 3240 b. 1620 c. 1440 d. 2880