I believe the answer is the last one
The following expression shows the relationship between wavelength, velocity and frequency of a wave:
Wavelength [m] = Velocity [m/s] /frequency [Hz]
Making velocity the subject of the formula;
Velocity = Wavelength*Frequency = 5*4.2 = 21 m/s
Answer:
The answer is C: cos(x)= 10/15.
Step-by-step explanation:
ed2020
Answer:
13a
Step-by-step explanation:
9a + 3a + a = 13a
Answer:
b 2,3,8
Step-by-step explanation:
Y=234678
Z=278910
X=12358
234678910 n 12358
=238