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OpenStudy (ladiesman217):
help please fans and medal awarded In a laboratory experiment, an ultrasound detector located at D is used to measure the distances of two moving objects, P and Q. At a certain moment, P and Q are located as shown in the diagram. What is distance PQ? A. 6.82 feet B. 5.66 feet C. 4.74 feet D. 4.24 feet E. 3.89 feet
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OpenStudy (ladiesman217):
|dw:1380803846918:dw|
OpenStudy (ladiesman217):
@.Sam. help me please i dont understand it
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