Solve the problem.A guy wire to the top of a tower makes an angle of 68° with the level ground. At a point 35 feet farther from the base of the tower and in line with the base of the wire, the angle of elevation to the top of the tower is 20°. What is the length of the guy wire?
A. 43.67 ft
B. 12.91 ft
C. 16.11 ft
D. 94.88 ft
Answer: C
Mathematics
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tan-1 
B. 
tan-1 
- 
tan-1 
C. sin-1 
- sin-1 
D. tan-1 
- tan-1 
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Solve the initial value problem.u'(x) = 5u + 15, u(1) = 1
A. u = e5x - 5 - 3 B. u = 4e5x - 5 - 3 C. u = 12e5x + 5 - 3 D. u = 12e5x + 5 + 3
Mathematics
Graph the function.
A. 
B. 
C. 
D. 
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Solve the equation.
+ 
= 
A. 
B. 
C. 
D. 
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