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 2 years ago
2. Forrest Lumber uses the function
S(t) = 105t + 840
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?
9 years
10 years
8 years
7 years
 2 years ago
2. Forrest Lumber uses the function S(t) = 105t + 840 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? 9 years 10 years 8 years 7 years

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JakeV8
 2 years ago
Best ResponseYou've already chosen the best response.1When it says "depreciate completely", that means the point where its salvage value, S(t), is equal to 0.

JakeV8
 2 years ago
Best ResponseYou've already chosen the best response.1So if S(t) = 0, then 0 = 105t + 840 Then you just need solve for "t"
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