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Answer:
<h2>The intensity in decibel is 320 decibel </h2>Step-by-step explanation:
Given the intensity, or loudness, of a sound measured in decibels (dB), according to the equation where;
I is the intensity of a given sound and
is the threshold of hearing intensity
To get I(dB) when
We will substitute the value of I = into the equation above to have;
Since log10 = 1;
The intensity in decibel is 320 decibel
Answer:
Option C
Step-by-step explanation:
From the picture attached,
In ΔABC,
m∠BAC + y° = 180° [Linear pair of angles are supplementary]
m∠BAC = 180° - y°
m∠ABC = x° [Vertically opposite angles]
m∠ACB = z° [Vertically opposite angles]
By triangle sum theorem,
m∠BAC + m∠ABC + m∠ACB = 180°
(180 - y)° + x° + z° = 180°
x - y + z = 180 - 180
x - y + z = 0
Option C will be the answer.
