Find the derivative of y with respect to the appropriate variable.y = (?2 + 6?) tanh-1 (? + 5)
A. (2? + 6) tanh-1 (? + 5) - 
B. - 
C. (2? + 6) - 
D. (2? + 6) tanh-1 (? + 5) - 
Answer: A
Mathematics
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Evaluate.63
A. 18 B. -216 C. 36 D. 216
Mathematics
Solve the problem.The chairlift at a ski resort has a vertical rise of 2,900 feet. If the length of the ride is 1.6 miles, what is the average angle of elevation of the lift (to the nearest tenth of a degree)?
A. 17.1° B. 14.1° C. 20.1° D. 23.1°
Mathematics
Solve. Write the answer as a mixed number in simplest form.A rectangular flower bed in front of a building measures 5
feet by 17
feet. What is the total area of the flower bed? Hint: The area of a rectangle is the product of the length times the width.
A. 100 sq ft
B. 101 sq ft
C. 91 sq ft
D. 85
sq ft
Mathematics
Use the quadratic formula to solve the equation.5x2 = -8x - 2
A. 
B. 
C. 
D. 
Mathematics