A wave has a wavelength of 1.2 m and a frequency of 3 Hz. What is the wave speed?

A. 4.2 m/s
B. 2.5 m/s
C. 1.8 m/s
D. 3.6 m/s

D. 3.6m/s

Explanation:

The equation for wave speed can be used to calculate the speed of a wave when both wavelength and wave frequency are known. Consider an ocean wave with a wavelength of 1.2 meters and a frequency of 3 hertz. The speed of the wave is: Speed = 1.2m x 3wave/s = 3.6 m/s

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

its c i just checked it