Х+ Зу = -14
-4x-3y = 2
Help please...
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Pls! does anybody know a shortcut for answering these types of questions in the future?
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What is the number 321,000,000 in scientific notation? also what is the number? ?
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On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.
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