The Gateway Arch in St. Louis, Missouri, is approximately 630 ft wide and 630 ft high. At
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The Gateway Arch in St. Louis, Missouri, is approximately 630 ft wide and 630 ft high. At first glance, the arch resembles a parabola, but its shape is actually known as a modified catenary. The height s (in feet) of the arch, measured from the ground to the middle of the arch, is approximated by the function
where x = 0 represents the center of the arch with –299.2 ≤ x ≤ 299.2.
a. What is the height of the arch when x = 0?
b. What is the slope of the line tangent to the curve when x = 0? Does this make sense?
c. Find the rate of change of the height of the arc when x = 150 ft.
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Related Book For
Calculus With Applications
ISBN: 9780321831101
10th Edition
Authors: Margaret L Lial, Raymond N Greenwell, Nathan P Ritchey
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