Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-3 Real Numbers and the Number Line - Practice and Problem-Solving Exercises - Page 22: 69



Work Step by Step

Use the formula given to find the measurement of one wire for each height. Short wire =$ \sqrt (200^{2}+(0.55\times200)^{2}) \approx 228.3$ Middle wire = $ \sqrt (400^{2}+(0.55\times400)^{2}) \approx 456.5$ Large wire = $ \sqrt (600^{2}+(0.55\times600)^{2}) \approx 684.8$ Each height has 3 wires so multiply each height by 3: $228.3\times3 = 684.9$ $456\times3 = 1369.5$ $684.8\times3 =2054.4$ Add them all up: $684.9+1369.5+2054.4=4108.8$
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