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Mathematics 20 Online
OpenStudy (anonymous):

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 please help !

OpenStudy (anonymous):

|dw:1373547838465:dw|

OpenStudy (anonymous):

can someone help me with this @jigglypuff314 @NeXuZ_sKipps @Vocaloid

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