S(t) = -105t + 945 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? A. 11 years B. 8 years C. 7 years D. 9 years

D

Step-by-step explanation:

When something depreciates completely, it will have a total value of 0 dollars. Therefore, set the equation to zero and solve for t to find the years.

Therefore, the table saw will completely depreciate after 9 years.

Step-by-step explanation:

For the value to depreciate completely, the amount has to be equal to 0 dollars.

Set S(t) to 0.

Solve for the time t.

Subtract 945 from both sides.

Divide both sides by -105.

It will take 9 years for the saw to depreciate completely.

false

step-by-step explanation:

4y - 6 + 4y^2 - 9

before simplifying this contains 4 terms

after simplifying

4y -15 + 4y^2

it contains 3 terms