Solve the problem.A reflecting telescope contains a parabolic mirror. If the mirror is 16 inches across at its opening and is 2 feet deep, where will the light be concentrated?
A. 0.7 in. from the vertex
B. 0.1 in. from the vertex
C. 0.3 in. from the vertex
D. 8 in. from the vertex
Answer: A
Mathematics
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, - 
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