01:49 Property, plant and equipment are: Tangible assets used in the operation of a business having a useful life of more than one accounting period. Current assets. Long-term investments. 199 Intangible assets used in the operations of a business having a useful life of more than one accounting period. Tangible assets used in the operation of business having a useful life of less than one accounting period. The relevant factor(s) in calculating 199 depreciation is (are): Cost. Residual value. Useful life. Both cost and useful life. All of these answers are correct. Sports world purchased equipment costing $10,000. The equipment has a 199