Solve the problem.A pendulum bob swings through an arc 40 inches long on its first swing. Each swing thereafter, it swings only 90% as far as on the previous swing. How far will it swing altogether before coming to a complete stop? Round to the nearest inch when necessary.
A. 200 in.
B. 44 in.
C. 89 in.
D. 400 in.
Answer: D
Mathematics
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.
?
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A. 
B. 
C. 
D. 
E. 
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