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W(t) = - 3t² +6t+45 a) Find the speed at the beginning of the interval. b) Find the maximum speed and when it occurs. c) Find the average speed over the 5-min interval.

W(t) = - 3t² +6t+45 a) Find the speed at the beginning of the interval. b) Find the maximum speed and when it occurs. c) Find the average speed over the 5-min interval.

Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.7: Problem Solving: Consecutive Integers
Problem 9MRE
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A​ keyboarder's speed over a 5​-min interval is given by the following​ function, where
W(t) is the​ speed, in words per​ minute, at time t.
40+ 20+ 0 y 2 -3 4
Transcribed Image Text:40+ 20+ 0 y 2 -3 4
W(t) = - 3t² + 6t+45 a) Find the speed at the beginning of the interval. b) Find the maximum speed and when it occurs. c) Find the average speed over the 5-min interval.
Transcribed Image Text:W(t) = - 3t² + 6t+45 a) Find the speed at the beginning of the interval. b) Find the maximum speed and when it occurs. c) Find the average speed over the 5-min interval.
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