lewis1100
lewis1100 lewis1100
  • 20-03-2017
  • Mathematics
contestada

Forrest Lumber uses the function

S(t) = -90t + 810

to determine the salvage value, S(t), in dollars, of a table saw t years after its purchase. How long will it take the saw to depreciate completely?

Respuesta :

reevee87
reevee87 reevee87
  • 21-03-2017
The saw will depreciate completely in 9 years. Multiply 9 times -90 and you'll get -810, the you add that to the +810 and you'll get 0.
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