Solve.The loudness, D, in decibels of a sound of intensity I is given by D = 10 log (I/I0), where I is measured in watt/m2 and I0 = 10-12 watt/m2. What is the decibel level of a noise whose intensity is 7.54 x 10-5 watt/m2? (Round to the nearest whole number.)
A. 69 decibels
B. 181 decibels
C. 79 decibels
D. 8 decibels
Answer: C
Mathematics
You might also like to view...
For the given sets, construct a Venn diagram and place the elements in the proper region.Let U = {1, 2, 3, 4, 5, 6, 7, 8}A = {3, 6, 8}B = {4, 6}C = {1, 6, 7, 8}
A. 
B. 
C. 
D. 
Mathematics
Find 
by implicit differentiation.
10 cos x siny = 16
Mathematics
Give the equation of the horizontal asymptote, if any, of the function.g(x) = 
A. y = 0 B. y = 1 C. no horizontal asymptote D. y = 2
Mathematics
Simplify the complex fraction using Method 1.
A. 6s + 3t
B. 
C. 3s + 6t
D. 
Mathematics