MayFlowers
20.09.2020 •
Mathematics
(01.06 MC)
The formula f=
2
where f = frequency, c = wave speed, and 1 = wavelength is used to calculate fre
Oc=f-1
O c = fx
Oc=f+
Oc=
Solved
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Ответ:
B. 40
Step-by-step explanation:
All triangle angles equal 180
100+40=140
180-140=40
B. 40 is the answer.