Solve the problem.A radio station claims that the amount of advertising per hour of broadcast time has an average of 15 minutes and a standard deviation equal to 1.6 minutes. You listen to the radio station for 1 hour, at a randomly selected time, and carefully observe that the amount of advertising time is equal to 8 minutes. Calculate the z-score for this amount of advertising time.
A. 4.38
B. 0.43
C. -11.2
D. -4.37
Answer: D
Mathematics
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Find AV when Vin = 1.8 mV and VO = 12.9 V.
a. 71.7 dB b. 77.1 dB c. 177.1 dB d. 181.8 dB e. 200.6 dB
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Divide. Write the answer in lowest terms and as a whole or mixed number where possible.
÷ 
A. 1
B. 56
C. 2
D. 
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A. 3, 
B. - 
, -3
C. -3, -6
D. 3, - 
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