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Y=-3x+2x, 3x+y=1 solve using substitution
asked
Feb 19, 2018
Mathematics
middle-school
1
answer
2
votes
137k
views
some animals communicate by emitting low frequency sound waves.When the animal emits a low frequency sound wave what is the resulting pitch?
asked
Feb 14, 2015
Physics
high-school
1
answer
2
votes
102k
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