8. A laptop computer's battery has a voltage drop modelled by the function t V(t) = 20e 16, where V is measured in volts, and t is time in hours. a) What is the initial voltage of the battery?

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Chapter1: Functions And Models
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8. A laptop computer's battery has a voltage drop modelled by the function
t
V(t) = 20e 16, where Vis measured in volts, and t is time in hours.
a) What is the initial voltage of the battery?
b) What is the voltage after 2 hours?
c) The computer will shut off if the voltage drops below 15 volts. How long will this
take?
d) Calculate the rate at which the voltage is dropping after 1 hour.
Transcribed Image Text:8. A laptop computer's battery has a voltage drop modelled by the function t V(t) = 20e 16, where Vis measured in volts, and t is time in hours. a) What is the initial voltage of the battery? b) What is the voltage after 2 hours? c) The computer will shut off if the voltage drops below 15 volts. How long will this take? d) Calculate the rate at which the voltage is dropping after 1 hour.
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