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Concept explainers
Catenary A power cable that is suspended between two towers that are 50 feet apart can be modeled by
(a) Show that the lowest point on the wire is midway between the two towers.
(b) Use a graphing utility to graph the function and verify your result in part (a).
(c) How much does the cable sag between the two towers?
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Chapter 4 Solutions
Calculus: An Applied Approach (MindTap Course List)
- Graph y=log2(x+3) 10+ 9 8 7- 6 5 4 3 3 2 1 10 -9 -8 -7 -6 -5 -4 -3-2-1 1 2 3 4 5 6 7 8 7 8 9 10 -1 -2 -3 -4 -5 -6 -7- -8 -9 -10 Clear All Drawarrow_forwardWrite an equation for the graph below. +10+ 9 10 -9 -8 -7 -6 -5 -4 -3-2-1 8 7 6 5 4 3 2 1 1 3 4 5 6 7 8 9 10 -1 -2 -3 -4 -5 -6 -7 -8 f(x) = 9 -9 -10-arrow_forward3. Solve the inequality and give your answer in interval notation. Be sure to show all your work, and write neatly so your work is easy to follow. (4 points) 2|3x+12 ≥ 18arrow_forward
- - 2. In words, interpret the inequality |x8|> 7 the same way I did in the videos. Note: the words "absolute value" should not appear in your answer! (2 points)arrow_forwardFind the tangential and normal components of the acceleration vector for the curve (t) = (2t, -3t5,-3+4) at the point t = 1 ā(1) = T + N Give your answers to two decimal placesarrow_forwardA gun is fired with muzzle velocity 1152 feet per second at a target 4150 feet away. Find the minimum angle of elevation necessary to hit the target. Assume the initial height of the bullet is 0 feet, neglect air resistance, and give your answer in degrees.arrow_forward
- "Use the Opposite Method to solve the following differential equation:" 4'"""" + 34" + 34 + 4 = xarrow_forwardFor the curve defined by (t) = (e cos(t), et sin(t)) find the unit tangent vector, unit normal vector, normal acceleration, and tangential acceleration at πT t = 3 П I(3) 丌_3_3 N (1) ат aN || = = =arrow_forwardFind the velocity vector for the position vector (t) = (sin(9+), 9t10, e¯7). x component = y component = Z component =arrow_forward
- In the xy-plane, an angle 0, in standard position, has a measure of the following is true? T. Which of 3 A The slope of the terminal ray of the angle is 1. B The slope of the terminal ray of the angle is 1. C D 3 The slope of the terminal ray of the angle is ✓ 2 The slope of the terminal ray of the angle is √3.arrow_forwardy'''-3y''+4y=e^2x Find particular solutionarrow_forward1 -1- Ο Graph of f y = + y = 1 + 1/2 ·2· x Graph of g y = 1- 플 The figure gives the graphs of the functions f and g in the xy-plane. The function of is given by f(x) = tan¹ x. Which of the following defines g(x)? A tan 1 x + 1 B - tan 1 x + П 2 C tan-1 (2/2) + 1 D tan-1 (2/2) + 1/1arrow_forward
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