Why might large corporations be more likely to support development of sustaining technology rather than emerging technology?

a. the risk factors are too low.
b. it's more expensive to develop.
c. the technology is already aligned with main revenue streams.
d. they want to differentiate themselves from their competition.

You are evaluating two different silicon wafer milling machines. the techron i costs $285,000, has a three-year life, and has pretax operating costs of $78,000 per year. the techron ii costs $495,000, has a five-year life, and has pretax operating costs of $45,000 per year. for both milling machines, use straight-line depreciation to zero over the project’s life and assume a salvage value of $55,000. if your tax rate is 24 percent and your discount rate is 11 percent, compute the eac for both machines.