Solve.What must be done to the equation m - 5 = 8 in order to isolate the variable?
A. Add -5
B. Subtract 8
C. Add 8
D. Add 5
Answer: D
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Find the derivative.f(x) = sin 3e5x
A. -15e5x cos 3e5x B. cos 3e5x C. e5x cos 3e5x D. 15e5x cos 3e5x
Perform the indicated operations and simplify. Assume all variables represent positive real numbers.
- 3
+ 2
A. 14
B. 39
C. -14
D. -39
The intensity of sound I (as a multiple of the average minimum threshold of hearing intensity) is related to the decibel level D (or loudness of sound) according to 
. A decibel reading of 140 is at the threshold of pain. If 
is the intensity of this threshold and
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, express the ratio 
as a power of 10.
?
A. 
B. 
C. 
D. 
E. 
Simplify.
A. - 
B. 
C. 
D. 