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24-01-2024
Mathematics

Answered

A car is driving away from a crosswalk. The formula d = t^2+ 2t expresses the car's distance from the crosswalk in feet, d, in terms of the number of seconds, t, since the car started moving.

Suppose t varies from t=2 to t=5
What is the car's average speed over this interval of time?

Suppose t varies from t=1.4 to t=2.1.
What is the car's average speed over this interval of time?

Answer :

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