Determine whether or not the triangles are similar.
A. Similar
B. Not similar
Answer: B
Mathematics
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Solve the problem.A domed ceiling is a parabolic surface. For the best lighting on the floor, a light source is to be placed at the focus of the surface. If 9 m down from the top of the dome the ceiling is 25 m wide, find the best location for the light source.
A. 17.4 m down from the top B. 8.6 m down from the top C. 4.3 m down from the top D. 12.9 m down from the top
Mathematics
Rationalize the denominator. Simplify, if possible.
A. 
B. 5
C. 54
D. 
Mathematics
Graph the function.y = 2 sec|x| 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression for the given values. Expression your answer as a fraction unless otherwise indicated.
x = 9, y = 10
A. 
B. 
C. 
D. 
Mathematics