Solve the problem.A hill on a hiking trail goes up 60 feet over a distance of 122 feet. Find the grade of the hill.
A. 60
B. 
C. 
D. 122
Answer: B
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (-1, 1) for 4x - 
+ 3x2y2 = 0.
A. - 
B. 
C. - 
D. 
Solve the problem.Determine the probability that in a class of 30 students, at least two students have the same birthday. Assume that birth rates are constant throughout the year. (Hint: First determine the probability that no two students have the same birthday and then apply the complementation rule.)
A. 0.786 B. 0.746 C. 0.706 D. 0.294
Find the exact value of the expression.sin 185° cos 65° - cos 185° sin 65°
A. 
B. - 
C. - 
D. 
Solve the problem.A bag contains 6 apples and 4 oranges. If you select 5 pieces of fruit without looking, how many ways can you get 5 apples?
A. 12 B. 6 C. 10 D. 24