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A Bridge Has a Main Span of About 1400 Meters

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A bridge has a main span of about 1400 meters. Each of its towers has a height of about 146 meters. Approximate the length of a parabolic cable along the main span if the length C of  the cable is given by C=20w1+(4h2/w4) x2dx. Round your answer to one decimal place. \text { the cable is given by } C = 2 \int _ { 0 } ^ { w } \sqrt { 1 + \left( 4 h ^ { 2 } / w ^ { 4 } \right) x ^ { 2 } } d x \text {. Round your answer to one decimal place. }
 A bridge has a main span of about 1400 meters. Each of its towers has a height of about 146 meters. Approximate the length of a parabolic cable along the main span if the length C of  \text { the cable is given by } C = 2 \int _ { 0 } ^ { w } \sqrt { 1 + \left( 4 h ^ { 2 } / w ^ { 4 } \right)  x ^ { 2 } } d x \text {. Round your answer to one decimal place. }    A) 719.8 meters B) 759.4 meters C) 2120.7 meters D) 1439.6 meters E) 2879.2 meters


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