Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 2 - 2.2 - Functions - 2.2 Exercises - Page 184: 66

Answer

$165.722; 182.787; 198.288; 212.275; 224.748$ $218.371; 194.056; 177.499; 168.700; 167.659$ $177.256;197.321;209.044$

Work Step by Step

We are given the function: $p(t)=\begin{cases} -0.757t^2+20.80t+127.2,2\leq t\leq 6\\ 3.879t^2-82.50t+605.8,7\leq t\leq 11\\ -4.171t^2+124.34t-714.2,12\leq t\leq 14 \end{cases}$ Compute $p(t)$ for $t=2,3,4,5,6$: 2002: $p(2)=-0.757(2^2)+20.80(2)+127.2=165.722$ 2003: $p(3)=-0.757(3^2)+20.80(3)+127.2=182.787$ 2004: $p(4)=-0.757(4^2)+20.80(4)+127.2=198.288$ 2005: $p(5)=-0.757(5^2)+20.80(5)+127.2=212.275$ 2006: $p(6)=-0.757(6^2)+20.80(6)+127.2=224.748$ Compute $p(t)$ for $t=7,8,9,10,11$: 2007: $p(7)=3.879(7^2)-82.50(7)+605.8=218.371$ 2007: $p(7)=3.879(7^2)-82.50(7)+605.8=218.371$ 2008: $p(8)=3.879(8^2)-82.50(8)+605.8=194.056$ 2009: $p(9)=3.879(9^2)-82.50(9)+605.8=177.499$ 2010: $p(10)=3.879(10^2)-82.50(10)+605.8=168.700$ 2011: $p(11)=3.879(11^2)-82.50(11)+605.8=167.659$ Compute $p(t)$ for $t=12,13,14$: 2012: $p(12)=-4.171(12^2)+124.34(12)-714.2=177.256$ 2013: $p(13)=-4.171(13^2)+124.34(13)-714.2=197.321$ 2014: $p(14)=-4.171(14^2)+124.34(14)-714.2=209.044$
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