Provide an appropriate response.Find the measure of ?2 if ?3 = 48°.
A. 90°
B. 180°
C. 48°
D. 132°
Answer: C
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Use the decibel scale to answer the question.What is the loudness, in decibels, of a sound 33 trillion times as loud as the softest audible sound?
A. 162 dB B. 108 dB C. 189 dB D. 135 dB
Solve the problem.Four married couples have reserved eight seats in a row at the theater, starting at an aisle seat. In how many ways can they arrange themselves if the four men occupy the four seats closest to the aisle?
A. 16 B. 24 C. 576 D. 40,320
Find the unknown length x for the given similar triangles. 
A. x = 32 B. x = 40 C. x = 24 D. x = 30
Determine whether the relation defines y as a function of x. Give the domain.y = - 
A. Not a function; domain (-?, 0) ? (0, ?) B. Function; domain: (-?, ?) C. Function; domain (-?, 0) ? (0, ?) D. Not a function; domain (-?, 6) ? (6, ?)