A company can buy a machine that is expected to have a three-year life and a $33,000 salvage value. The machine will cost $1,812,000 and is expected to produce a $203,000 after-tax net income to be received at the end of each year. If a table of present values of $1 at 12% shows values of 0.8929 for one year, 0.7972 for two years, and 0.7118 for three years, what is the net present value of the cash flows from the investment, discounted at 12%?

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.