Solve the problem.Use the formula L = 10 ? log 
, where the loudness of a sound in decibels is determined by I, the number of watts per square meter produced by the soundwave, and 
A certain noise produces 6.35 × 10-4 W/m2 of power. What is the decibel level of this noise?
A. 203 dB
B. 78 dB
C. 88 dB
D. 9 dB
Answer: C
Mathematics
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Multiply.0.20 × 1000
A. 200 B. 2000 C. 20 D. 0.20
Mathematics
Find the credit given and the balance due after the partial payment.Invoice amount: $150Invoice date: Nov 10Terms: 3/10, n/30Date paid: Nov 18Partial payment: $95
A. Credit: $97.94 Balance: $52.06 B. Credit: $95.00 Balance: $55.00 C. Credit: $97.85 Balance: $52.15 D. Credit: $92.15 Balance: $57.85
Mathematics
Solve the problem.Find the sum of (-8 + 6n5 + 9n4) and 
A. -4n5 + 4n4 + 7 B. 10n5 + 7n4 - 10 C. 10 + 7n5 - 10n4 D. 7n9
Mathematics
Provide an appropriate response.Is it true that the expression 11x3 - 40 has no common factor other than 1?
A. No, this is not true. B. Yes, this is true.
Mathematics