The intensity, or loudness, of a sound can be measured in decibels (dB), according to the equation I (d B) = 10 log left-bracket
2 answers:
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Answer:
<em>c</em> = 32.1
<em>b = </em>34.4
<em /> 47 degrees
Step-by-step explanation:
Using sine = opp/hyp. to find side c:
Using cosine = adj/hyp. to find side b:
Finding angle B:
It's a right triangle and you're given one of the acute angles, which means you can find the missing third angle. All triangles interior angles add to equal 180 degrees.
180 - (43 + 90) = 47 degrees