Answer:
a=4
Step-by-step explanation:
you need 20 hours babysitting here is how you solve that
you subtract 25 form 165 which is 140 then you divide by 7 which is 20.
your answer is 20.
Answer:
And if we convert to megahertz we got:
Step-by-step explanation:
For any mechanical wave we have the following general relationship:
where:
v represent the speed of the wave = 299790000 m/s
represent the wavelength for the radio station
f represent the frequency of interest
If we solve for the frequency we got:
And replacing the values we got:
And if we convert to megahertz we got: