PLEASE HELP ME, WILL GIVE BRAINLIEST!! Let's do some calculation! Using the information below, calculate the speed of the wave. MAKE SURE TO INCLUDE YOUR UNITS!

wavelength = 3.7 cm and frequency = 8.4 Hz

0.31m/s

Explanation:

Given parameters:

Wavelength  = 3.7cm

Frequency  = 8.4Hz

Unknown:

Speed of the wave  = ?

Solution:

The speed of a wave is the product of its wavelength and frequency. It is mathematically expressed as;

        Speed of the wave  = Frequency x Wavelength

Convert cm to m;

          100cm  = 1 m

            3.7cm  = 0.037m

 Now,

     Speed of the wave  = 8.4 x 0.037  = 0.31m/s

it is either c or d and i know for sure it is not a or b