In a double-blind experiment, select one: a. the researchers are unaware of which participants are in the experimental and control groups b. participants are randomly assigned to a control or experimental group c. all of the above are true. d. the participants are unaware of whether they are in the experimental or control groups because of the use of placebos

Bayside coatings company purchased waterproofing equipment on january 2, 20y4, for $190,000. the equipment was expected to have a useful life of four years and a residual value of $9,000. instructions: determine the amount of depreciation expense for the years ended december 31, 20y4, 20y5, 20y6, and 20y7, by (a) the straight-line method and (b) the double-declining-balance method. also determine the total depreciation expense for the four years by each method. depreciation expense year straight-line method double-declining-balance method 20y4 $ $ 20y5 20y6 20y7 total $