Math  /  Algebra

QuestionA small business estimates that the value V(t)\mathrm{V}(t) of a copy machine is decreasing according to the function V(t)=7000(4)0.12tV(t)=7000(4)^{-0.12 t} where tt is the number of years that have elapsed since the machine was purchased, and V(t)\mathrm{V}(\mathrm{t}) is in dollars. Use this information to answer parts (a)-(d). (a) What was the original value of the machine?
The original value was $7000\$ 7000. (Round to the nearest dollar as needed.) (b) What is the value of the machine 5 yr after purchase, to the nearest dollar?
The value of the machine 5 yr after purchase is approximately. $3047\$ 3047. (Round to the nearest dollar as needed.) (c) What is the value of the machine 10 yr after purchase, to the nearest dollar?
The value of the machine 10 yr after purchase is approximately $\$ \square (Round to the nearest dollar as needed.)

Studdy Solution
Calculate the value:
V(10)=7000×(41.2) V(10) = 7000 \times (4^{-1.2})
Using a calculator:
V(10)7000×0.1778 V(10) \approx 7000 \times 0.1778 V(10)1244.6 V(10) \approx 1244.6
Round to the nearest dollar:
V(10)1245 V(10) \approx 1245
The value of the machine 10 years after purchase is approximately $1245\$1245.
The value of the machine 10 years after purchase is approximately $1245\$1245.

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