The formulas for distance traveled for two electronically controlled cars are given by: E(t)=201-21? and F()=r²+5¢, where distance is in feet and time is in minutes. a.) Find the longest interval, beginning at t=0, over which the E-car is traveling faster than the F-car. from t=0 to t= b.) The average trip speed at time t of the E-car is defined to be E(¢)/t (total distance traveled over total time elapsed at time t). Find the positive time t at which the average trip speed and the instantaneous speed of the E-car are the same. If no such time exists, enter NONE. t= c.) Find the time at which the E-car is traveling 3 ft/min faster than the F-car. t=

Calculus: Early Transcendentals
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Author:James Stewart
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Chapter1: Functions And Models
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Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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The formulas for distance traveled for two electronically controlled cars are given
by:
E(t)=201-21? and F()=r²+5¢,
where distance is in feet and time is in minutes.
a.) Find the longest interval, beginning at t=0, over which the E-car is traveling
faster than the F-car.
from t=0 to t=
b.) The average trip speed at time t of the E-car is defined to be E(¢)/t (total
distance traveled over total time elapsed at time t). Find the positive time t at
which the average trip speed and the instantaneous speed of the E-car are the
same. If no such time exists, enter NONE.
t=
c.) Find the time at which the E-car is traveling 3 ft/min faster than the F-car.
t=
Transcribed Image Text:The formulas for distance traveled for two electronically controlled cars are given by: E(t)=201-21? and F()=r²+5¢, where distance is in feet and time is in minutes. a.) Find the longest interval, beginning at t=0, over which the E-car is traveling faster than the F-car. from t=0 to t= b.) The average trip speed at time t of the E-car is defined to be E(¢)/t (total distance traveled over total time elapsed at time t). Find the positive time t at which the average trip speed and the instantaneous speed of the E-car are the same. If no such time exists, enter NONE. t= c.) Find the time at which the E-car is traveling 3 ft/min faster than the F-car. t=
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