Express as a single logarithm.logx18 - logx3
A. logx15
B. 
C. logx6
D. logx54
Answer: C
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Solve the problem.The surface area of a hollow cylinder (tube) is given by 
where h is the length of the cylinder and R1 and R2 are the outer and inner radii. If h, R1, and R2 are measured to be 4 inches, 5 inches, and 8 inches respectively, and if these measurements are accurate to within 0.1 inches, estimate the maximum possible error in computing S.
A. 13.82 B. 20.11 C. 16.96 D. 10.68
Use a sum or difference identity to find the exact value.sin 
cos 
- cos 
sin 
A. 
B. 
C. 1
D. 
Find the domain of the composite function f?g. Write the domain in interval notation.f(x) = 
, g(x) = 
A. (-?, -9) ? (-9, 0) ? (0, ?) B. (-?, ?) C. (-?, -8) ? (-8, 0) ? (0, ?) D. (-?, -9) ? (-9, -8) ? (-8, 0) ? (0, ?)
Solve the problem.The average number of viewers per day for TV Show A is 2.0 million viewers while the average number of viewers per day for TV Show B is 27.0 million viewers. Find the unit ratio of the average number of viewers per day of TV Show B to the average number of viewers per day of TV Show A. What does your result mean in this situation?
A. 
; For every viewer watching TV Show A, there are about 27.5 viewers watching TV Show B.
B. 
; For every viewer watching TV Show A, there are about 13.5 viewers watching TV Show B.
C. 
; For every viewer watching TV Show A, there are about 13.6 viewers watching TV Show B.
D. 
; For every viewer watching TV Show A, there are about 2.25 viewers watching TV Show B.