Answer
a. miles per hour
b. speed
Work Step by Step
a. Look at the question and see the units are miles traveled after t hours. So, miles per hour.
b. And the common word for miles per hour is speed.
Calculus Concepts: An Informal Approach to the Mathematics of Change 5th Edition
by LaTorre, Donald R.; Kenelly, John W.; Reed, Iris B.; Carpenter, Laurel R.; Harris, Cynthia R.
Published by
Brooks Cole
ISBN 10:
1-43904-957-2
ISBN 13:
978-1-43904-957-0
Chapter 2 - Describing Change: Rates - 2.3 Activities - Page 157: 1
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