Solve the problem. Round your answer to the nearest tenth, if necessary.The formula s = 16t2 is used to approximate the distance s, in feet, that an object falls freely (from rest) in t seconds. A man drops his keys off a building 1015 ft high. How long does it take the keys, falling freely, to hit the ground?
A. About 8 sec
B. About 31.7 sec
C. About 63.4 sec
D. About 127.4 sec
Answer: A
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Provide an appropriate response.You mention to an acquaintance that you wish to buy a Rolex watch, but the model you're interested in is too expensive for your budget. He says that his cousin sells watches, and he'll see if he can get you a deal. Sure enough, his cousin offers you the same watch for 50% of the price. Does this sound like a deal worth taking?
What will be an ideal response?
Use a graphing utility as an aid in factoring to solve the equation.22x2 + 129x + 44 = 0
A. x = - 11, x = - 
B. x = 
, x = 
C. x = - 
, x = - 
D. x = 
, x = - 4
Provide an appropriate response.The graph of an exponential function is given. Which of the following is the correct equation of the function?
A. y = 2.4x B. y = 0.31x C. y = 0.45x D. y = 1.8x
Graph the polynomial function. f(x) = x4 + 4x3 + 4x2
A. 
B. 
C. 
D. 