Solve.Neglecting air resistance, the distance d in feet that an object falls in t seconds is given by the equation 
Use this formula to find the time it would take for an object to fall to the ground from a cliff that is 1936 feet high.
A. 10 seconds
B. 11 seconds
C. 12 seconds
D. 121 seconds
Answer: B
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Find the limit and determine if the function is continuous at the point being approached.
cos 
A. Does not exist; no B. 1; no C. Does not exist; yes D. 1; yes
Find the exact value of the expression or state that it does not exist.cos
A. 0
B. 
C. 
D. 1
Solve the problem.From a point on a river, two boats are driven in opposite directions, one at 9 miles per hour and the other at 11 miles per hour. In how many hours will they be 40 miles apart?
A. 2 hr B. 1 hr C. 4 hr D. 3 hr
Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.a = 1, c = 14
A. b = 
; b ? 3.606
B. b = 
; b ? 14.036
C. b = 
; b ? 13.964
D. b = 13