Solve the problem.Gary can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 29 miles, spending 2 hours on level ground and 5 hours on uphill terrain. Find his average speed on level ground.
A. 6
mph
B. 6
mph
C. 4
mph
D. 3
mph
Answer: A
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Find the indicated derivative.Find y " if y = -5 cos x.
A. y " = -5 cos x B. y " = -5 sin x C. y " = 5 sin x D. y " = 5 cos x
Let x be a number. Translate the English phrase or sentence into a mathematical expression. A number divided by -75
A. x - 75 B. x ÷ (-75) C. -75 ÷ x D. -75x
Match the description with the appropriate rational function.The x-axis is its horizontal asymptote.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Solve the problem.An arch for a bridge over a highway is in the form of a semiellipse. The top of the arch is 35 feet above ground (the major axis). What should the span of the bridge be (the length of its minor axis) if the height 26 feet from the center is to be 12 feet above ground?
A. 27.68 ft B. 151.67 ft C. 35.85 ft D. 55.36 ft