Graph the function.y = 4 csc 
A. 
B. 
C. 
D. 
Answer: C
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Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 3 B. 0.05 C. 0.1 D. 0.5
Provide an appropriate response.Explain why 
? 
. Reduce the fraction correctly.
What will be an ideal response?
Solve.A railroad tunnel is shaped like a semi-ellipse. The height of the tunnel at the center is 12 ft and the vertical clearance must be 8 ft at a point 15 ft from the center. Find an equation for the ellipse.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve the problem.A radio transmission tower is 120 feet tall. How long should a guy wire be if it is to be attached 8 feet from the top and is to make an angle of 22° with the ground? Give your answer to the nearest tenth of a foot.
A. 129.4 ft B. 120.8 ft C. 299.0 ft D. 320.3 ft