The strength of a radio signal (AM, FM, Bluetooth, 5G, etc.) obeys a logarithmic
function of the form
$$S(r) = -50.3 - 10 \cdot 3.2 \log r,$$
where r is the distance of the receiver (or phone) from the tower. The signal strength
is measured in dBm, and the distance is measured in meters. How quickly is the
signal strength decaying when r = 415 m? Round your answer to the nearest one
decimal place. Recall that your answer will be negative.
Your Answer:
Answer