Find the derivative of y.y = ln(sech (8x + 5))
A. 
B. -tanh (8x + 5)
C. tanh (8x + 5)
D. -8 tanh (8x + 5)
Answer: D
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Solve the problem. Assume all numbers are approximate unless otherwise stated or the number has been determined by a definition or counting process.An electronics manufacturer lists the frequency of one of its crystals as 5.95 MHz. What are the lowest and highest possible frequencies at which the crystal may oscillate?
A. Only at 5.95 MHz B. 5.945 MHz and 5.954 MHz C. 5.94 MHz and 5.96 MHz D. 5.9 MHz and 6 MHz
Solve the problem.The maximum distance d in kilometers that you can see from a height h in meters is given by the formula 
How high above the ground must you be to see 55 kilometers. (Round to the nearest tenth of a meter.)
A. 246.9 m B. 864.3 m C. 15.7 m D. 26 m
Provide an appropriate response.When a division problem results in an answer that stops and does not continue on forever, the quotient is called a 
.
Fill in the blank(s) with the appropriate word(s).
The graph of a logarithmic function is shown. Select the function which matches the graph.
A. y = log x B. y = -log x C. y = -log(-x) D. y = log(-x)