Use a proportion to solve the problem.The ratio of the lengths of strings that play the notes D and B is 27 to 16. If a string 32 centimeters long plays a B, what is the length of the string that plays a D?
A. 59 centimeters
B. 48 centimeters
C. 54 centimeters
D. 70 centimeters
Answer: C
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Solve the problem.A coin is tossed upward from a balcony 228 ft high with an initial velocity of 32 ft/sec. During what interval of time will the coin be at a height of at least 100 ft? (h = -16t2 + v0t + h0.)
A. 4 ? t ? 8 B. 3 ? t ? 4 C. 0 ? t ? 1 D. 0 ? t ? 4
Determine whether the equation defines y as a function of x.y2 = 5x
A. Yes B. No
Solve the problem.The shelf life (in days) of a perishable drug is a continuous random variable with probability density function f(x) as shown below. f(x) = 
Find the median shelf life.
A. 125 days B. 25 days C. 5 days D. 15 days
Evaluate using a table of integration formulas. 
A. 
tan-1 
+ C
B. 
ln 
+ C
C. 
ln 
+ C
D. 5 sin-1 
+ C