Conversational speech is 65 dB as a known fact.
Using math, dB = 10 log[10] ratio
10x => 10(1) = +10 dB
100x => 10(2) = +20 dB
base is 45 dB
Answer:
21
Step-by-step explanation:
y = 3x + 9
y = -3x + 12
y=21
The answer is B, there’s no solution.
Answer:
y=3x-2
Step-by-step explanation:
y=mx+b
Slope = m = 3
b = y-intercept = -2
y=3x-2