?Suppose a cable of a suspension bridge is suspended (in the shape of a parabola) between two towers that are 120 meters apart and 20 meters above the roadway as shown in the figure given below. The cable touches the roadway midway between the towers. Find the length of the parabolic supporting cable. Round your answer to two decimal places.
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?
, 
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A. ?48678.81 meters
B. ?49096.07 meters
C. ?49146.7 meters
D. ?47100.56 meters
E. ?47597.14 meters
Answer: E
Mathematics
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Find parametric equations for the line described below.The line through the point P(3, 4, -5) parallel to the vector 
A. x = -4t - 3, y = 3t - 4, z = -5t + 5 B. x = -4t+ 3, y = -3t + 4, z = 5t - 5 C. x = 4t - 3, y = -3t - 4, z = -5t + 5 D. x = 4t + 3, y = -3t + 4, z = -5t - 5
Mathematics
Find the quadratic approximation of f at x = 0.f(x) = 
A. Q(x) = 9 - 
B. Q(x) = 9 + 
C. Q(x) = 9 + 
D. Q(x) = 9 - 
Mathematics
Solve the equation.7.1m + 2m - m = 30.78
A. 7.1 B. 3.8 C. 8.1 D. 38
Mathematics
Use the order of operations to simplify the expression.
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+ 
? 
A. 
B. 
C. 
D. 
Mathematics