<p>What fraction of 130 is 80</p><p><br /></p>
1 answer:
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For this case we have the following function:
We want to find the inverse of the function.
The first thing we should do is rewrite the function:
From here, we clear the value of x.
We have then:
Then, returning the variable changes, we have that the inverse function is:
Answer:
The inverse function of f (x) is:
Answer:
The sound intensity is about 101.9 dB
Step-by-step explanation:
Sound intensity is the amount of sound energy per unit area.
The intensity of the dog bark is 10⁻⁵ W/in². The intensity of sound in decibels is given by:
I = 10⁻⁵ W/in² = 0.0155 W/m²
Therefore:
The sound intensity is about 101.9 dB