Mathematics, 01.08.2021 14:00 IsabelAyshi
Thay x = 2 (thỏa mãn điều kiện) vào B ta có: B = \frac{{ - 10}}{{2 - 4}} = \frac{{ - 10}}{{ - 2}} = 5
Answers: 2
Mathematics, 21.06.2019 17:50
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.
Answers: 2
Thay x = 2 (thỏa mãn điều kiện) vào B ta có: B = \frac{{ - 10}}{{2 - 4}} = \frac{{ - 10}}{{ - 2}} =...
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