N a hearing test, subjects estimate the loudness (in decibels) of a sound, and the results are: 68, 67, 70, 71, 68, 75, 68, 62,
1 answer:
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Hello there!
Explanation:
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First you had to subtract by 2 from both sides of the equation.
Simplify it should be the correct answer.
Answer⇒⇒⇒b=-7
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