Solve.The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 4 sec when the length is 64 inches, what is the period when L = 3.0625 inches?
A. 0.875 sec
B. 5 sec
C. 4.75 sec
D. 4.25 sec
Answer: A
Mathematics
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A. 
B. 
C. 
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Multiply and check the product.
A. 391 B. 271 C. 280 D. 291
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