Find Dxy.y = tanh 3x sech x
A. 3 sech23x sech x - tanh 3x tanh2x
B. 3 sech23x sech x - tanh 3x sech x tanh x
C. 3 sech 3x tanh 3x sech x - tanh 3x sech x tanh x
D. 3 sech33x - tanh23x sech x
Answer: B
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Solve the problem.The distance traveled by a falling object is given by d = 16t2, where d is the distance (in feet) the object falls in t seconds. A stuntman jumps from a rooftop 375 ft off the ground. How long will it take him, falling freely, to reach the ground? Round your answer to the nearest tenth of a second.
A. 23.4 sec B. 4.8 sec C. 77.5 sec D. 11.7 sec
Solve the problem.A survey of senior citizens at a doctor's office shows that 46% take blood pressure-lowering medication, 47% take cholesterol-lowering medication, and 7% take both medications. What is the probability that a senior citizen takes either blood pressure-lowering or cholesterol-lowering medication? Express the answer as a percentage
A. 100% B. 0% C. 6% D. 86%
Use a calculator to find the approximate value. Express your answer in degrees rounded to two decimal places.cos-1(-0.9397)
A. -20° B. 157° C. 160° D. 162°
Provide an appropriate response.Sketch the graph of y = f(x - 3) for the given graph of y = f(x).
A. 
B. 
C. 
D. 